Star Calendar – April 2017

Star Calendar

April 2017

Star C alendar Planets:

Moon and Sun balance on either side of the solstice point on the 7th. They rise and set at the same point on the horizon on that day and make the same path across the sky. One might observe the pair at 4:45PM and imagine the height of summer between them.

Mercury begins the month at greatest elongation, bright and decently visible just after 8:PM or so. He is hasty to depart though, and crosses the near-side of the Sun on the 20th.

Venus is already visible in the morning and will be stationary to the stars by the 12th. She is very tall, waxing less slender and will present a maximally brilliant dawn beacon by the end of the month.

Sun rises/sets steadily more north of east/west and adds an hour and a quarter of daylight over the course of this month.

Mars is seen low in the West at about 7:30 as the month begins and lower and later as the month progresses. Mars and Aldebaran (higher and to the left) look very similar these days. On the evening of the 28th the Moon, Aldebaran and Mars will shine together WNW at about 7:45PM.

Jupiter reaches opposition on the 7th. He is now brightest and closest for the year and is in the middle of his period of backward movement near Spica. Look for the Moon in the mix on the 10th.

Saturn is seen culminating in the early morning and stops in the steam (Milky Way) of the Teapot (Sagittarius) on the 6th to begin this year’s loop.

Star Calendar Days:

  1      Sunrise/set in Spring Valley at 6:39/19:21 (12h42m daylight)

          Day number 91; ¼ of the year has passed

          Mercury shining in low West 8:PM, sets at 9:PM

          Moon in horns of Taurus in evening, West

  6      Saturn stationary, begins retrograde loop at spout of Teapot

          Moon passes close to Regulus during this night

  7      Jupiter at opposition, brightest and nearest for the year

  9      Mercury stationary, then retrograde to stars, already retreating Sunwards

10      Moon clusters with bright Jupiter and Spica, ESE in evening

10-11 Full Pink Moon at 2:08AM  (leaf buds are pink)

11      Passover begins

12      Venus stationary, to direct motion

16      Moon with Saturn in south at 5:30AM

          Easter

20      Mercury, so recently visible, at inferior conjunction

22-23 Moon and Venus present the same phase, East at 5:30AM, use binoculars

26      Venus most brilliant for this appearance

28      Moon strikes a pose with Aldebaran and Mars, around 9:PM, West

30      Sunrise/set in Spring Valley at 5:55/19:52 (13h57m daylight)

          More than 2 ½ hours additional daylight since March 1st

          Midway from equinox to solstice, and about 1/3 of year has passed

          Venus covers greatest sky area for this appearance

Star Calendar – March 2017

Star Calendar

March 2017

 

Star Calendar Planets:

Moon cycles determine, or play a role in, some calendars such as the Islamic and Hebrew. The Islamic year is strictly lunar while the Hebrew is a hybrid luni-solar that inserts extra months so that the seasons don’t drift too far. The Hebrew year begins with Nissan. It commemorates the emancipation of the Jewish people from bondage in Egypt (Exodus) and Passover (whilst Rosh Hashanah commemorates the birth of the World). The Crucifixion is recorded in relationship to Passover and Easter is placed in such a way as to respect this correspondence. This year Nissan begins at sundown on the 27th of March, 15 Nissan (beginning of Passover) on the evening of April 11, and Easter on April 12. This year both Western and Eastern traditions correspond to the same day.

Mercury crosses the far side of the Sun and then appears already on the 18th next to Venus in evening.

Venus is now nearer to Earth than to the Sun as she streaks from evening to morning. On the 25th Venus is more than twice as far from the Sun than from the Earth – the ratio being just about 5:2. Venus begins the month stationary to the stars, then rapidly departs and crosses the nearside of the Sun by the 25th. She will be seen in the pre-dawn east already in early April.

Sun is rapidly increasing its presence in the sky by adding almost 3 minutes of daylight to each day. Of course, as we gain an abundance of daylight – the Govt. must naturally order us to start “saving” it.

Mars is seen to the right of the crescent Moon on the evenings of the 1st and again on the 30th.

Jupiter begins March near Spica and we can watch him move, retrograde, back away from Spica as the month proceeds. The pair rises about two hours after sunset and is joined by the Moon on the 14th.

Saturn slows his slow shuffle – that is so slow that he lingers in each seasonal quarter of the sky for over 7 years.

Star Calendar Days:

1 Sunrise/set in Spring Valley at 6:30/17:47 (11h17m daylight)
    Day number 60; about 1/6 of the year has passed
    Moon to left of Mars at dusk in west
    Moon and Venus in same crescent phase (use binoculars) as they set

2 Venus stationary to stars, prepares for dash across near side of Sun (25th)

4 Moon approaches to very near Aldebaran, dusk to midnight

6 Mercury crosses the far side of the Sun; superior conjunction

10 Moon moves away from Regulus this evening

11-12 Absent an Executive Order from the President, American clocks shift forward
      Full Crow, Worm, or Sap Moon at 10:54AM Daylight Shifted Time

14 Day 73 number; about 1/5 of the year has passed – and it’s Pi-day too
      Moon, Jupiter and Spica appear together at 10:PM ESE

16-17 Etymological equinox = equal night; Sun is down 12 hours and zero minutes

18- Mercury appears to left of Venus in gloaming – perfect Western view at 8:PM

20 Astronomical equinox at 6:29 – Sun’s center crosses celestial equator
      Sunrise/set in Spring Valley at 6:59/19:09 (12h10m daylight)
      Moon above Saturn around 6:AM, they culminate at sunrise

25 Venus streaks across near side of Sun; inferior conjunction

27-28 New Moon begins Hebrew month of Nisan – that places Passover and Easter

31 Sunrise/set in Spring Valley at 6:41/19:20 (12h39m daylight)
      Day number 90; nearly ¼ of the year has passed
      Enjoying the additional 1 hour and 22 minutes of daylight?

Star Calendar – February 2017

Star Calendar

February 2017

Star Calendar Planets:

Moon crosses the ecliptic (Moon node) when near syzygy with the Sun twice this month. Neither eclipse will be noticeable to us though. The Full Moon will rise in the penumbra of Earth’s shadow, will only be slightly less bright – but no hard shadow edge. At New Moon the Moon shadow’s tip will not quite reach the Earth’s surface such that the Sun will appear as a ring of light – for those along a path in the southern hemisphere.

Mercury drops out of morning sky to cross far side of Sun on March 7th.

Venus is a waning crescent that grows taller by the day. She shines to cover the largest portion of our sky on the 17th but is nearer, and brightest, on the following day. Thereafter her wane out-does her drawing nearer – but she remains sensational. Last month I saw my shadow cast by Venus; walking down a snow-covered lane (before the Moonrise) with Venus at my back.

Sun is halfway from winter solstice to vernal equinox and crosses the sky as it does in November. Astronomically winter is half over, climatically – by hysteresis of heat absorption – not so. Oh well.

Mars cruises Pisces this month as he sets out on his super-circum-zodiacal tour before making his next loop in 2018.

Jupiter pauses to begin this year’s loop in Virgo that will culminate with opposition in April.

Saturn enters the region of his next loop, vacillating between Ophiucus and Saggitarius.

Star Calendar Days:

31

Moon Venus & Mars astride the vernal equinox in evening

1

Sunrise/set in Spring Valley at 7:07/17:13 (10h6m)

2

Candlemas/Groundhog Day; midway twixt solstice and equinox

 

Venus nearest Mars for this appearance, WSW in evening

5

Moon with Aldebaran high in SSW in evening

6

Jupiter stationary to retrograde

Jupiter nearest Spica, ESE at 11PM or SW at 5AM

 

10-11

Full Snow Moon at 19:33 rises in penumbral eclipse (not noticeable)

11

Equation of Time at year’s minimum, clocks 14m15s ahead of Sun

Moon below Regulus

 

15

Moon, Jupiter & Spica rise at 11PM

16

Moon, Jupiter & Spica culminate (highest ans South) at 4AM

17

Venus shows maximal sky-area of illumination despite 26.7% crescent phase

18

Venus brightest – because it’s nearer, though 25.9% crescent

20

Moon above Saturn in the steam of the teapot, 5:30AM

Venus nearest to Sun (its perihelion)

 

21

Sun passes Moon’s descending node (where paths of Sun and Moon cross)

23

Jupiter makes second (of three) pass at Spica (conjunct in Right Ascension)

26

New Moon makes annular eclipse for South Pacific/America/Atlantic/Africa

28

Sunrise/set in Spring Valley at 6:32/17:46 (11h14m)

Moon, Venus & Mars again, West around 6:45PM

 

 

Star Calendar – January 2017

Star Calendar

January 2017

Star Calendar Planets:

Moon waxes from the westward side and wanes on the eastward but Venus (and Mercury) do so in the opposite way.

Mercury is stationary to the stars on the 8th but the Sun’s persistent eastwards motion continues to widen their separation (elongation) until the 19th. On that day astronomical twilight ends at 6:15AM with Mercury just 5 degrees above the horizon, down and to the left of Saturn (12 degrees, SW and less bright) and Antares (15 degrees, slightly S of SW, still less bright). The Moon visits these three in reverse sequence on 23, 24, 25th.

Venus makes her flourish for this appearance during this month as she continues to appear higher each evening, to brighten and to… wane(!) in phase. Venus’ phases appear the opposite way from the Moon’s and, because she gets markedly nearer in the smaller phases, is brightest when less than gibbous. In her cycle, Venus’ apparent diameter expands and contracts 7-fold.

Sun is almost 4% nearer in January than in July; nearest on the 4th of this month.

Mars finally begins to appear slightly lower each evening and is taunted by Venus this month as she sidles up all month to within 5 degrees by month’s end – only to pull away again next month.

Jupiter has been steadily approaching Spica and has the first of a triple conjunction with the star on the 20th; the next being already in Feb as he begins his loop, and the third in September.

Saturn returns with the New Year, now coming into view in the morning for those with a clear ESE view at 6:AM. As the month progresses brightish Saturn can serve as a clue to search for an even brighter, but elusively lower Mercury. The Moon is proximate on the morning of the 24th.

Star Calendar Days:

1 Sunrise/sunset in Spring Valley at 7:22/16:39 (9h17m daylight)
Crescent Moon approaches gibbous Venus in SW as evening dims

2 Moon waxes between Mars and waning Venus, SW in evening

3 Latest sunrise for year (at 7:22 and a few seconds)
Mars now between Moon and Venus

4 Sun nearest Earth (perihelion) for the year

6 Epiphany – when the Magi arrive “where the Star stood”, 12th day of Christmas

7 Julian Calendar December 25th, Orthodox Christmas

8 Mercury stationary (wrt stars) to direct (eastwards) motion

10 Moon rising on the meridian of Summer solstice as Sun sets

11-12 Full Wolf Moon at 6:34AM

12 Venus at greatest angle from Sun for this appearance, 47 degrees

14 Julian Calendar January 1st 2770 AUC
Venus at last quarter phase (watch it subsequently wane, with binoculars)

14-15 Moon passes very near Regulus, seen in east at 9:PM

17 Venus crosses ecliptic northwards

19 Moon with Jupiter and Spica at 6:AM in south
Mercury at greatest elongation. Look SW at 6:15AM, with Saturn and Antares

20 Jupiter conjunct with Spica (subsequently appears east of the star by RA)

23 Moon above and to left of Antares, SE at 6:AM

24 Moon near Saturn, SE at 6:AM

25 Moon above bright Mercury, SE at 6:15 (if you’re lucky)

31 Sunrise/set in Spring Valley at 7:08/17:12 (10h4m daylight)
Venus appears highest at sunset (40 degrees)
     Moon, Venus and Mars together in WSW after 6PM

Star Calendar – December 2016

Star Calendar

December 2016

Star Calendar Planets:

Moon begins the month by visiting some planets in heliocentric order, then occults Aldebaran again before making its long-night excursion just after perigee. Solstice evening and Christmas eve will be absent the Moon – hence very dark. Then the last two Classical (visible to naked eye) planets will be visited, again in order.

Mercury is well south of the ecliptic, but the evening line steepens a bit too as solstice approaches and he may be spied if sought for – especially in the second week of this month. After this he suddenly darts out of the evening scene, scoots past the Sun on the 28th and shoots for a morning appearance with Saturn in early January.

Venus shines her brightest for the year this month – commonly mistaken as an airplane approaching with landing lights ablaze, she seems to leap upwards towards Mars – but she will retreat in January and the two shan’t meet ‘til October.

Sun is getting nearer as perihelion approaches in January and crosses the meridian at its average interval of 24 hours (which it does four times each year) on the 24th. On the 21st He rises and sets most-south-of east and west, makes his lowest passage across the southern meridian and spends the least time above the horizon. Due to the oddities arising from mean-time-keeping, earliest sunset occurs before solstice and latest sunrise occurs in January.

Mars continues to appear higher each evening even though the Sun is closing the gap between the two. This is again because the ecliptic is steepening against the horizon as we approach and pass solstice.

Jupiter continues to dominate the morning scene, standing prominently bright in the South above Spica.

Saturn quietly slips past the Sun on the 10th and should come into view some morning in January – still proximate to Antares. Remember that Saturn is lolling around near the winter solstice and is just always low these several years. Next December the Sun and Saturn will cross the solstice line together.

Star Calendar Days:

1 Sunrise/sunset in Spring Valley at 7:03/16:28 (9h25m daylight)

    Young Moon stands above evasive Mercury, SW at 5:PM

3 Moon stands above dazzling Venus, SW in evening

4-5 Moon stands beside Mars, SSW in evening

7 Sun sets earliest for the year, 16:27 in Spring Valley

10 Saturn passes behind Sun

11 Mercury achieves greatest angular distance from Sun (21 degrees)

12-13 Moon perigee tonight

            Moon occults Aldebaran around 11:10PM+ until 12:10AMish

13-14 Full Long Nights Moon at 19:06; rise/set 16:41/7:30 (14h49m moonlight)

18 Moon approaches Regulus in SW before dawn

19 Mercury Stationary, to retrograde motion

21 Winter solstice at 5:44, least daylight; 7:18/16:31 (9h13m)

22 Ursid meteors peak late evening hours, face NNE as “Big Dipper” swings up

22-23 Moon, Jupiter and Spica appear SE in morning twilight

24 Equation of time is zero for Time Zone central meridia

25 Moon is apogee (at far point) for Christmas

26 Moon above evasive Antares in SE before dawn

27 Tired old Moon above (invisible) Saturn before dawn

28 Mercury at inferior conjunction, passes the nearside of the Sun

29 New Moon

31 Sunrise/set in Spring Valley at 7:21/16:38 (9h17m)

Star Calendar – November 2016

Star Calendar

November 2016

Star Calendar Planets:

Moon draws exceptionally near this month (nearest in 30 years) while also Full as it sets on the morning of the 14th.

Mercury peaks into the evening sky as Saturn departs. Around the 23rd will be the first chance to see Mercury – and the last for Saturn for this apparition. Failing that, try again on the 30th when the razor-thin new crescent Moon may serve as a guide. If that fails too, try under the Moon on Dec. 1st.

Venus crosses the Teapot (or Sagittarius) while making her oh-so-slow ascent into evening.

Sun is furthest ahead of Greenwich Time for the year on the 2nd, but is still behind our clocks – until we finally fall back from Daylight-distortion Time on the 6th.

Mars is beyond culmination (its highest altitude for that day, in South) at sunset now, and is being slowly overtaken by the Sun – but Mars will appear higher in the sky on successive nights at a given time because it is progressing beyond the midwinter portion of the ecliptic – and the ecliptic is more steeply inclined to the horizon at sunset. A little counter-intuitive.

Jupiter also appears higher every morning, but simply because the Sun is leaving it behind. The morning ecliptic is still very steep (October mornings are like March evenings in this respect) and will gradually drop through January. Jupiter gets a visit from the Moon on mornings of the 24-25th.

Saturn settles into the sunset, next to appear some morning after midwinter.

Star Calendar Days:

  1      Sunrise/sunset in Spring Valley at 7:28/17:51 (10h23m daylight)

  1, 2   Venus, Saturn & Moon over Antares in SW at 6:45PM

  2      Equation of time maximum for year 16m26s

  3      Moon above Venus in SW at 7:PM

  6      Mornings brighten after U.S. clocks move back to Standard Time

          Moon above Mars South and West in evening

  9      God help us from our dis-aster (bad star) – whichever way it went

11      Martinmas – begins cross-quarter winter

13-14 Super Duper Moon: Full Frost Moon 8:52 AM at extreme perigee

16      Moon rises ENE on the summer colure at 7PM

17      Leonids peak in poor viewing conditions (too much Moon, too nearby)

20-21 Moon passes Regulus without occultation (was one last time)

24      Mercury may just be visible with Saturn at 5:PM with perfect WSW horizon

25      Moon and Jupiter above Spica in SE at 6:AM

28      Solstice on Mars, mid-winter for northern half

30      Mercury to left of Hilal Moon in WSW at 5:PM

          Sunrise/sunset in Spring Valley at 7:01/16:28 (9h27m daylight)

Star Calendar – October 2016

Star Calendar

October 2016

Star Calendar Planets:

Moon is New on the 1st for those in “Greenwich” and zones east – but it is still Sept 30th here. Those who do not mind being up after midnight will have a chance to see an occultation of Aldebaran on the night of 18-19th in the ESE. The bright limb should blot out Aldebaran around 12:45 (I do not have exact times!) and the dark limb should reveal just over an hour later.

Mercury shines with ascending Jupiter on the morning of the 11th, then falls back from his recent morning apparition and moves in direct motion behind the Sun on the 27th.

Venus is just under 15 degrees above the horizon at sunset all month and gradually brightens as she cruises towards Antares and Saturn – arriving between the two on the evening of the 27th.

Sun performs part of its strange semiannual schizo-peregrination on the 30th when much of Europe falls back from Summer Time to Standard Time just before Halloween. In the U.S. the Sun waits to confuse us until just before Election Day.

Mars passes through the steam (Milky Way) of the Teapot (Sagittarius) this month, SSW each evening as darkness settles in.

Jupiter appears next to Mercury (pretty low) on the morning of the 11th and is the brighter of the pair. He will gradually be higher thereafter and will be the brightest object in the eastern morning sky for a while. He is of equal brilliance to Sirius, seen in the south.

Saturn begins the month above Antares and begins direct motion into Ophiucus in earnest. The Moon stands above the pair on the 6th.

Star Calendar Days:

1 Sunrise/sunset in Spring Valley at 6:53/18:37 (11h43m daylight)

2 Sighting of the Moon (WSW, to right of Venus at 6:15PM) begins

    the years 5777 A.M. and 1438 A.H.; Hebrew and Muslim respectively

3 Moon above Venus, WSW around 6:15PM

5 Moon to right of Saturn, SW at 7:PM

6 Mars crosses top of the bow of the Archer, SSW at 7:15PM

8 Moon above Mars, SSW at 7:PM

    Draconid meteors?

11 Mercury (left) and Jupiter shine together 5:15 in East

15-16 Full Hunter’s Moon at midnight (12:23) AND perigee

17 Orionid meteors may peak early – but Moon will frustrate

19 Moon occults Aldebaran after midnight – sometime between 12:30 to 1:30AM

21 Typical peak for Orionids (residue from Halley’s Comet tail

27 Mercury crosses behind Sun (superior conjunction)

      Venus stands between Antares and Saturn low in SW at 5:45PM

28 Moon beside Jupiter in east at 5:AM

29 Mars is nearest to the Sun for its year

30 Europe falls back to Standard Time at 2:AM

      New Moon at 1:38PM

31 Sunrise/set in Spring Valley at 7:27/17:52 EST (11h15m daylight)

      All Saint’s Eve will be DARK this year

Star Calendar – September 2016

Star Calendar

September 2016

Star Calendar Planets:

Moon is New fairly near the Sun’s passing through the middle of eclipse season (near a moon node) but is also near apogee so that it is too distant for its shadow tip to reach earth, making an annular eclipse. Full Moon occurs as the Sun is leaving the realm of the node – making a penumbral lunar eclipse then. Neither event is visible in Spring Valley or our hemisphere. A second New Moon occurs as September closes – but the Sun is then well out of the realm of eclipse-making geometry. The Harvest Moon is a period when the skies never really get dark – making outdoor work possible into the night and/or early morning. This year the Full Moon rises in Civil Twilight and does not set until 2 hours after the following sunrise. The effect is stronger when the Moon is well north of the ecliptic – which it isn’t this year.

Mercury scoots back into the morning sky for a more favorable appearance in the second half of this month. Even though the excursion from the Sun makes a much smaller angle than the last one, the steepness of the ecliptic in morning skies at this time make an overwhelming advantage for us. A crescent Moon aids on the 28th and 29th.

Venus sidles up to Spica during the first half of this month, and overwhelms in the second half. Spica is the signature star of Virgo and may be found by following the curve begun by the handle of the Dipper – through yellow-green Arcturus and about that distance again to whitish Spica. Venus is approaching us, getting larger in angular size, and waning gibbous in phase.

Sun crosses the celestial equator, then rises and sets south of east and west until spring. The alternation of presence in the sky for longer and shorter portions of the day is imitated, in different periods by all of the planets – see Jupiter.

Mars starts making tracks away from the Scorpion and toward the Teapot/Archer this month. When he begins to move out he also fades in brilliance. Remember how bright he was compared to Antares in August? He will diminish to equal brightness by January.

Jupiter crosses the celestial equator near his conjunction with the Sun this month. Jupiter will also fall south of the celestial equator, but, unlike the Sun, will remain there for 5 ½ years. One could call this period an autumn and winter for Jupiter. He will next cross the summer colure in June of 2025.

Saturn begins the month above Antares and begins direct motion into Ophiucus in earnest. The Moon stands above the pair on the 6th.

Star Calendar Days:

  1      Sunrise/sunset in Spring Valley at 6:23/19:28 (13h5m daylight)

          New Moon at 5AM, annular solar eclipse S.Africa, Madagascar, Antarctic

  2      Very young Moon grazes Jupiter low in west, setting around 8:PM

  3      Young Moon above Venus, evening in west

  8      Moon above Saturn, SW at 9:PM

  9      Moon above Mars, SW at 10:PM

13      Mercury crosses near-side of Sun

16      Full Harvest Moon at 15:05, penumbral lunar eclipse for Indian Ocean hemisphere

17-18 Venus passes to above and left of Spica, low-western evening sky

21      Mercury is stationary to stars, visible in low east at 6:AM

          Jupiter crosses to south of celestial equator – remains there until May 26, 2022!

22      Center of Sun crosses celestial equator, autumnal equinox, at 10:21 EDT

          Sunrise/sunset at 6:44/18:53 (12h9m daylight)

25      Sun’s upper limb just tangent to southern edge of celestial equator –

          Sunrise/sunset at 6:47/18:47 (12h0m daylight) equal day and night

26      Jupiter crosses far-side of Sun (conjunct)

28      Mercury at greatest angle from Sun, 18 degrees, for this appearance

          Mercury below waning Moon, low East around 6:AM

29      Mercury just below/right of old Moon, low East around 6:AM

30      Another New Moon for this month, 8:PM

Star Calendar – August 2016

Star Calendar

August 2016

Star Calendar Planets:

Moon passes just out of reach of Earth’s sizable shadow on the 18th as it sets at dawn. It is very close to being, or not being, a technical penumbral encounter – but nothing observable will occur. Some eclipse tables will list this event, others will not. Both are correct! An annular solar eclipse will cross Africa and Madagascar on September 1st when the Moon’s shadow doesn’t quite reach the Earth.

Mercury makes its widest excursion from the Sun this month but does so doubly disadvantaged from our point of view. Firstly the ecliptic is dropping dramatically to the left of the Sun (aka the coming decent into fall) and secondly Mercury is passing rather south of the ecliptic line. At greatest elongation on the 27th, Jupiter and Venus have a lesser elongation but stand higher than Mercury in the evening – as they are north of the ecliptic just now.

Venus sets at 9:PM on the 1st and then about one minute earlier each day thereafter – but the Sun sets even earlier, gaining about a minute and 21 seconds each day – so Venus is a little higher each evening twilight relative to sunset but is lower each evening relative to the clock. During this month she will pass Regulus, Jupiter and Mercury.

Sun stands in the middle of Cancer as the month begins, crosses into astronomical Leo on the 9th and reaches Regulus on the 21st. If you recall where Jupiter stood (beneath the belly of Leo) at the extremity of his last loop (stationary on May 9), the Sun will reach that spot on September 5th.

Mars will make a striking equilateral triangle with Saturn and Antares, in the south on the 11th, but the Moon standing directly above him will make a distracting lozenge – or possibly blot out Antares. So perhaps on any other day it is a good time to contrast Mars with Antares as they approach one another. They are conjunct on the 23rd/24th.

Jupiter is in direct motion, meaning that he appears further leftwards each day against the stars. The Sun and Moon epitomize this motion and the planets execute variations and contrasts to this theme. Venus is moving more quickly than the Sun, Jupiter more slowly – and Venus will catch up on the 27th for a very close and very bright conjunction. That would be a night to find a 10 to 30 power telescope with either not too large an aperture or fitted with some filters, for Venus will be so close that she’ll mingle amongst the Moons of Jupiter. The pair will be low and due West at 8:15 PM at the very beginning of Nautical Twilight conditions. Find a good spot ahead of time.

Saturn is within the meridia of Scorpius, (though astronomically in Ophiucus) and stands above (north of) Antares. Mars will cut between the two on the 23rd/24th.

Perseid meteors statistically peak mid-month, but the gibbous Moon presents a liability then. There have been known to be earlier outbursts however, so gazing Perseus/Cassiopeia-wards earlier in the month may reward. The Aurigids peak in better conditions at the end of the month – but are above the horizon in the pre-dawn hours – raying from above Orion’s shoulder.

Star Calendar Days:

  1      Sunrise/sunset in Spring Valley at 5:52/20:12 (14h20m daylight)

  2      New Moon

  4      Mercury to right of young Moon, 8:45PM in West

          Also, lower to right, Venus

  5      Venus and Regulus conjunct in evening, latter probably washed out by sunset

  6      Moon just beneath Jupiter, setting by 9:30 PM in West

11      Moon, Mars, Antares, Saturn make a lozenge in SSW at 9:PM

12      Perseids peak – by statistics of the past

13      Saturn stationary to direct motion

16      Mercury at largest (but very low) angle from Sun for this appearance, 27 degrees

18      Full Red Moon (5:27 AM) sets in slight penumbral eclipse in early morning

23-25 Mars passes between Saturn and Antares, SSW in evening

27      Venus and Jupiter pass very close in West as Sun sets – should be quite bright

30      Mercury stationary to retrograde

31      Sunrise/sunset in Spring Valley at 6:22/19:30 (13h8m daylight)

Star Calendar – July 2016

Star Calendar

July 2016

Star Calendar Planets:

Moon will show only 1/7 of her fullness on the 7th of the 7th month. 7/7 is the date of the oriental star festival called Tanabata – when two lovers (stars Vega and Altair), separated by a river (the Milky Way), may be allowed to meet if the river vanishes. But that is unlikely this year since the Moon is too small (dim) to vanquish the river. However, terrestrial lights may very well do the job instead; Orihime and Hikoboshi are probably big fans of Light Pollution.

Mercury crosses behind the Sun on the 6th-7th and might just be seen at the end of the month in the evening. On the 30th, with a good view to the west, Venus should shine out by around 8:30 PM. Following her descent, Mercury should appear to her left, and Regulus might just be made out very close beneath Mercury – try binoculars. That will be the nearest planet-to-bright-star conjunction for the year.

Venus should be visible (west) in bright evening twilight after mid-month or so, but she sets by around 9:PM. Mercury will pass close by on the 16th, but the sky will likely be too bright to see him. Again, one might try binoculars.

Sun is at its highest on the 4th – in the sense of distance-from-the-ground or Aphelion. Might the Earth be deemed most independent then? Proximity of the Sun slightly exaggerates the Winter/Summer of the southern hemisphere – but tempers those seasons in the north. Ocean is preponderate in the south – and it tends to subdue the seasons by great thermal mass and circulation – while land masses respond more quickly to the solar input. At present the apsides rather subdue climate change – with a residual net warming; the last ice age is still finishing up – but as the apsides shift (over centuries), a net cooling will again glaciate the north. The effect of apsides is smallish on the earth – but is large on eccentric Mars.

Mars, still brighter than any star, now culminates (is highest, in the south) as dark falls. He shone like a flying cinder during our St. John’s bonfire.

Jupiter is brighter than Mars – but is lower and further west each day when he appears. He entertains the Moon on the 8th and 9th.

Saturn makes a huge triangle with equal-brilliance stars Arcturus and Vega (the latter is slightly brighter). Saturn will gradually be higher and more southerly at first appearance each evening as the month progresses. In August he will appear in a fashion similar (in position) to that of Mars this month.

Star Calendar Days:

  1      Sunrise/sunset in Spring Valley at 5:28/20:32 (15h4m daylight)

  4      Aphelion at noon – Sun is 3% farther than in January

          Sun, Moon, Venus and Mercury between the knees of Gemini

          Equinox on Mars, autumnal for northern part

  7      Mercury at superior conjunction – crosses behind Sun

          Moon beneath Regulus after sundown

          Tanabata – oriental star festival of Orihime (Vega) and Hikoboshi (Altair)

8-9     Moon near Jupiter in West at dusk

11      Moon between Mars and Jupiter, and beside Spica, SW in evening

14      Moon, Mars, Antares and Saturn make an oblong in South at 10:PM

16      Moon, Saturn and Mars make a line over Antares at 10:PM

19      Full Thunder or Hay Moon at 6:57PM

30      Perhaps find Mercury near dimmer Regulus as Venus sets, W around 9:PM

31      Sunrise/sunset in Spring Valley at 5:51/20:13 (14h22m daylight)