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11/14/2018 – Ephemeris – The bright planets this week

November 13, 2018 Comments off

Ephemeris for Wednesday, November 14th. The Sun will rise at 7:38. It’ll be up for 9 hours and 37 minutes, setting at 5:15. The Moon, 1 day before first quarter, will set at 11:18 this evening.

Let’s look at the bright planets for tonight. Two of them are visible in the evening sky. Jupiter will set too soon after sunset to be seen. It will set only 29 minutes after the Sun. Saturn, the ringed planet, will start the evening low in the southwestern sky and will set at 7:59 p.m. Mars will be low in the south as the skies darken tonight. Mars will be due south at 7:15 p.m., and it will set at 12:24 a.m. Mars is moving eastward, crossing the constellation of Aquarius this month. It’s currently at the western edge of Aquarius, moving eastward and northward, so its setting time won’t change much over this month. Venus, our brilliant morning star, will rise at 5:15 a.m. in the east southeast. The blue-white star Spica is just above and right of it now.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addenda

Evening planets
Mars, Saturn and the Moon seen at 7 p.m. tonight November 14, 2018. Created using Stellarium.
Binocular Moon
The Moon as it might appear in binoculars or a small telescope tonight at 7 p.m. November 14, 2018. Created using Stellarium.
Venus in the a.m.
Venus in the morning sky at 7 a.m. November 15, 2018. Note the bluish star Spica above and to the right of it. Created using Stellarium.
Planets and the Moon on a single night
Planets and the Moon at sunset and sunrise of a single night starting with sunset on the right on November 14, 2018. The night ends on the left with sunrise on the 15th. Click on the image to enlarge. Created using my LookingUp program.

Comet Notes

Two comets will be flirting with naked eye visibility later this month and next month.  Newly discovered C/2018 V1 Machholz-Fujikawa-Iwamoto.  It will be a morning object in mid-December and be its brightest at the end of this month or early December when it will be cruising through Ophiuchus. 

Comet C/2018 V1
The path of C/2018 V1 from November 15, 2018, to December 5, 2018. The labels are month, date, and expected magnitude. Click on the image to enlarge. Created using Cartes du Ciel (Sky Charts).

Periodic comet 46P/Wirtanen is moving up from the south and is an evening object.  It will pass close to the Pleiades in mid-December and will appear near the bright star Capella around Christmas time.

The path of comet 46p/Wirtanen through December
The path of comet 46p/Wirtanen through December.  Labels are every 5 days with the comet’s name, month date and expected magnitude.  Created using Cartes du Ciel (Sky Charts). 

11/13/2018 – Ephemeris – The Summer Triangle in autumn

November 13, 2018 Comments off

Ephemeris for Tuesday, November 13th. The Sun will rise at 7:37. It’ll be up for 9 hours and 39 minutes, setting at 5:16. The Moon, 2 days before first quarter, will set at 10:20 this evening.

The Summer Triangle is still in the sky at 9 p.m., even though it’s November. These three bright stars that straddle the Milky Way are high in the east for most of the summer, move overhead and begin to slide to the west in autumn. We will lose Altair, the southernmost of the three stars at 9 p.m. on the winter solstice, December 21st. We’ll lose the brightest, Vega in January. For the northern half of the IPR listening area the northernmost of the triangle stars, Deneb won’t quite set below a north Lake Michigan horizon. Next spring we’ll be waiting and watching for these three stars to rise, reclaim the skies, and bring again the warm summer skies. The winter skies do however have more bright stars than the summer sky.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Summer Triangle tonight
The Summer Triangle of the three bright stars Vega, Deneb and Altair is still high in the west at 8 p.m. tonight. The zenith is near the top of the image. Created using Stellarium
Summer Triangle about to set.
The Summer Triangle with Altair about to set on the winter solstice at 9 p.,. Created using Stellarium.

11/12/2018 – Ephemeris – Orion is rising

November 12, 2018 Comments off

Ephemeris for Veterans Day Observed, Monday, November 12th. The Sun will rise at 7:35. It’ll be up for 9 hours and 41 minutes, setting at 5:17. The Moon, 3 days before first quarter, will set at 9:25 this evening.

Just after the Moon sets tonight winter’s most dazzling constellation will be rising, Orion the hunter of Greek myth. The stars of his torso are in a rectangle leaning to the left. Orion’s belt of three stars in a straight line in the center of the rectangle is nearly vertical. The Anishinaabe peoples whose region we live in see the constellation of the Wintermaker rather than Orion. It uses Orion’s torso and belt stars, but his arms are spread wide from Aldebaran in the face of Taurus the bull to the west to Procyon in Canis Minor, which won’t rise until 11 p.m. to the east. The Wintermaker’s arms are wide enough to embrace the entire winter sky. Its name in Anishinaabemowin, which is Biboonikeonini, means “North Wind”.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Orion or Wintermaker rising
Take your pick: it’s either Orion rising of the Wintermaker rising at 9:30 p.m. November 12th. Created using Stellarium and GIMP, and Western and Ojibwe star lore.

11/09/2018 – Ephemeris – The Great Andromeda Galaxy

November 9, 2018 Comments off

Ephemeris for Friday, November 9th. The Sun will rise at 7:31. It’ll be up for 9 hours and 49 minutes, setting at 5:21. The Moon, 2 days past new, will set at 7:03 this evening.

In the south at 9, this evening can be found a large square of stars, the Great Square of Pegasus the flying horse, flying upside down to the right. What looks like its hind legs stretching to the left from the upper left corner star is another constellation, Andromeda the chained princess. She is seen in the sky as two diverging curved strings of stars that curve upward. She was rescued by the hero Perseus, a nearby constellation, riding Pegasus. Andromeda’s claim to astronomical fame is the large galaxy seen with the unaided eye just above the upper line of stars. The Great Andromeda Galaxy is 2.5 million light years away. To the naked eye the galaxy appears as a small smudge of light. In binoculars the galaxy is a delicate spindle of light.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Great Andromeda Galaxy finder chart
Great Andromeda Galaxy finder chart. Created using Stellarium and GIMP.
The Great Andromeda Galaxy (M31). Image taken by Scott Anttila.
The Great Andromeda Galaxy (M31) with two of its satellite galaxies M32 and M110. Image taken by Scott Anttila.

11/08/2018 – Ephemeris – More constellations of autumn: Andromeda, Triangulum and Aries

November 8, 2018 Comments off

Ephemeris for Thursday, November 8th. The Sun will rise at 7:30. It’ll be up for 9 hours and 51 minutes, setting at 5:22. The Moon, 1 day past new, will set at 6:26 this evening.

High in the south at 9 p.m. can be seen the Great Square of Pegasus. From the top left star of the square diverge two curved lines of stars that is Andromeda the chained princess. Just below and left of Andromeda is a slender triangle of stars, none particularly bright. It has a name you can easily see in the stars, Triangulum, the triangle. Early Christians saw it as the Mitre of Saint Peter or the Trinity. Another small constellation seen below Triangulum is the much better known constellation Aries the ram, a small hockey stick of a constellation, not that hard to spot. It is the first constellation of the Zodiac, where the Sun is supposed to enter on the first day of spring. Due to the wobble of the Earth’s axis over the millenia, that honor is now given to Pisces.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Andromeda, Pegasus, Triangulum and Aries finder animation
Andromeda, Pegasus, Triangulum and Aries finder animation for 8 p.m. November 8, 2018.  Created using Stellarium and GIMP.  Click on the image to enlarge.

11/07/2018 – Ephemeris – Two Two evening planets and a morning planet visible now

November 7, 2018 Comments off

Ephemeris for Wednesday, November 7th. The Sun will rise at 7:28. It’ll be up for 9 hours and 54 minutes, setting at 5:23. The Moon is new today, and won’t be visible.

Let’s look at the bright planets for tonight. Two of them are visible in the evening sky. Jupiter will set too soon after sunset to be seen. It will set only 44 minutes after the Sun. Saturn, the ringed planet, will start the evening low in the southwestern sky and will set at 8:24 p.m. Mars will be low in the south as the skies darken tonight. and is now 77.8 million miles (125.2 million km) away. Mars will be due south at 7:26 p.m., and it will set at 12:28 a.m. Mars is moving eastward, crossing the constellation of Aquarius this month. It’s currently at the western edge of Aquarius. Venus, now the brilliant morning star, will rise at 5:57 in the east southeast. It will grace our morning skies through next spring.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Mars and Saturn at 7 p.m. November 7, 2018. Click on image to enlarge.  Created using Stellarium.

Venus in the morning at 6:45 a.m.  Spica is going to be tough to spot above Venus.  Created using Stellarium.

A telescopic view of the planets .  Mars and Saturn in the evening and Venus in the morning.  All using the same magnification.  Created using Cartes du Ciel (Sky Charts).  Venus had a bit of help using GIMP.  Planetarium programs don’t do well with extremely thin crescents.
Moon and planets on a single night
Planets and the Moon at sunset and sunrise of a single night starting with sunset on the right on November 7, 2018. The night ends on the left with sunrise on November 8th. Click on the image to enlarge. Created using my LookingUp program.

11/06/2018 – Ephemeris – The Taurid meteor showers

November 6, 2018 Comments off

Ephemeris for Election Day, Tuesday, November 6th. The Sun will rise at 7:27. It’ll be up for 9 hours and 57 minutes, setting at 5:24. The Moon, 1 day before new, will rise at 7:09 tomorrow morning.

We are in the midst of two showers of meteors that seen to come from the constellation of Taurus the bull. These are the Southern and Northern Taurids respectively. They only produce a handful of meteors per hour, but there seems to be some discrepancy in their peak dates. The International Meteor Organization has the Southern group peak October 10th. Other sources have it peak November 5th. The Northern group peaks on the 10th or 12th of November depending on the source. Anyway these are bits shed by Comet 2P/Encke, which has only a 3 year orbit of the Sun. Encke’s orbit also comes close to the Earth’s orbit where the Earth is at the end of June. I’ve always wondered if it was a piece of Encke’s nucleus that hit Siberia on June 30, 1908?

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Taurid Radiants at midnight in early November
The Southern and Northern Taurid meteor shower radiants at around midnight in early November. Created using Stellarium.

The radiants are not as nearly defined as shown here

11/05/2018 – Ephemeris – Cassiopeia the Queen

November 5, 2018 Comments off

Ephemeris for Monday, November 5th. The Sun will rise at 7:26. It’ll be up for 9 hours and 59 minutes, setting at 5:26. The Moon, 2 days before new, will rise at 6:00 tomorrow morning.

The stars of the autumn skies are replacing the summer stars from the east. Look in the northeastern sky by 7 p.m. and you can find the W shaped constellation of Cassiopeia the queen. Cassiopeia is so far north that it never sets for us in Michigan. It is opposite the pole star Polaris from the Big Dipper. There’s a dim star that appears above the middle star of the W which turns it into a very crooked backed chair, Cassiopeia’s throne. Above and left of Cassiopeia is a dim upside down church steeple shaped constellation of Cepheus the king, her husband. The Milky Way flows through Cassiopeia toward the northeastern horizon and through the constellation of Perseus the hero, which kind of looks, to me anyway, like the cartoon roadrunner.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

Cassiopeia and friends
Cassiopeia and constellations along the Milky Way in the northeast these autumn evenings. (8 p.m. November 5). Click on image to enlarge. Created using Stellarium and GIMP.

11/02/2018 – Ephemeris – Back to basics tonight at the GTAS meeting

November 2, 2018 Comments off

Ephemeris for Friday, November 2nd. The Sun will rise at 8:22. It’ll be up for 10 hours and 7 minutes, setting at 6:30. The Moon, 2 days past last quarter, will rise at 3:27 tomorrow morning.

Tonight at this month’s meeting of the Grand Traverse Astronomical Society at 8 p.m. at Northwestern Michigan College’s Rogers observatory we will get back to basics for anyone wondering about the skies visible from one’s backyard. Learn the constellations by building your own star finder that shows where the stars are any night of the year. We’ll also show you how to use it. We will let you experiment with moon-balls, that will show the light and shadow of the Moon’s phases. Afterward, if it’s clear you’ll have a chance to use those star finders during the observation period starting around 9 p.m. The observatory is south of Traverse City, on Birmley Road, between Garfield and Keystone roads.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

11/01/2018 – Ephemeris – November preview

November 1, 2018 Comments off

Ephemeris for Thursday, November 1st. The Sun will rise at 8:20. It’ll be up for 10 hours and 10 minutes, setting at 6:31. The Moon, 1 day past last quarter, will rise at 2:14 tomorrow morning.

Let’s look ahead at the skies for the month of November. The Sun is still moving south rapidly. Daylight hours in the Interlochen/Traverse City area and will drop from 10 hours and 10 minutes today to 9 hours 5 minutes on the 30th. The altitude, or angle, of the Sun above the southern horizon at local noon will be at 30 degrees today and will descend to 23 and a half degrees on the 30th. The altitude of the Sun in the Straits area will be a degree lower. Local noon, this month, will be about 12:30 p.m. once we’re on standard time. The Leonid meteor shower will reach multiple peaks from the 16th through the 21st and is expected to be lackluster and may only produce 10 to 15 meteors per hour. But the Leonids can be surprising.

The times given are for the Traverse City/Interlochen area of Michigan. They may be different for your location.

Addendum

November Evening Star Chart

November evening star chart
Star Chart for November 2018 (9 p.m. EST November 15, 2018). Created using my LookingUp program. Click on image to enlarge.

The planets and stars are plotted for the 15th at 9 p.m. EST in the evening and 6 a.m. for the morning chart. These are the chart times. Note that Traverse City is located approximately 45 minutes behind our time meridian. (An hour 45 minutes behind our daylight saving time meridian during EDT). To duplicate the star positions on a planisphere you may have to set it to 1 hour 45 minutes earlier than the current time.

Note the chart times of 9 p.m. and 6 a.m. are for the 15th. For each week before the 15th add ½ hour (28 minutes if you’re picky). For each week after the 15th subtract ½ hour. The planet positions are updated each Wednesday on this blog. For planet positions on dates other than the 15th, check the Wednesday planet posts on this blog.

November Morning Star Chart

November Morning star chart

Star Chart for November moprnings 2018 (6 a.m. EST November 15, 2018). Created using my LookingUp program. Click on image to enlarge.  The original morning chart uploaded November 1st was outdated.  This corrected chart was uploaded November 6th.

For a list of constellation names to go with the abbreviations click here.

  • Pointer stars at the front of the bowl of the Big Dipper point to Polaris the North Star.
  • Follow the arc of the handle of the Big Dipper to the star Arcturus
  • The Summer Triangle is in red.
  • TauR on the evening star chart can be used as the radiant for the North and South Taurid meteor showers.
  • LeoR on the morning star chart is the radiant of the Leonid meteor shower which peaks between the 16th to 21st.

Twilight

Time zone=EDT
Morning twilight Evening twilight Dark night Moon
Date Astronomical Nautical Nautical Astronomical Start End Illum.
2018-11-01 6h47m 7h21m 19h39m 20h13m 20h13m 1h02m 0.41
2018-11-02 6h48m 7h22m 19h38m 20h12m 20h12m 2h14m 0.29
2018-11-03 6h49m 7h23m 19h37m 20h11m 20h11m 3h27m 0.19
2018-11-04 5h50m 6h24m 18h36m 19h10m 19h10m 3h39m 0.11
2018-11-05 5h52m 6h26m 18h34m 19h08m 19h08m 4h50m 0.05
2018-11-06 5h53m 6h27m 18h33m 19h07m 19h07m 5h53m 0.01
2018-11-07 5h54m 6h28m 18h32m 19h06m 19h06m 5h54m 0.00
2018-11-08 5h55m 6h29m 18h31m 19h05m 19h05m 5h55m 0.01
2018-11-09 5h56m 6h30m 18h30m 19h04m 19h04m 5h56m 0.05
2018-11-10 5h57m 6h32m 18h29m 19h03m 19h46m 5h57m 0.10
2018-11-11 5h59m 6h33m 18h28m 19h02m 20h33m 5h59m 0.17
2018-11-12 6h00m 6h34m 18h27m 19h01m 21h25m 6h00m 0.26
2018-11-13 6h01m 6h35m 18h26m 19h00m 22h20m 6h01m 0.35
2018-11-14 6h02m 6h36m 18h25m 19h00m 23h18m 6h02m 0.44
2018-11-15 6h03m 6h38m 18h24m 18h59m – 6h03m 0.54
2018-11-16 6h04m 6h39m 18h24m 18h58m 0h18m 6h04m 0.63
2018-11-17 6h05m 6h40m 18h23m 18h57m 1h19m 6h05m 0.73
2018-11-18 6h07m 6h41m 18h22m 18h57m 2h21m 6h07m 0.81
2018-11-19 6h08m 6h42m 18h21m 18h56m 3h24m 6h08m 0.89
2018-11-20 6h09m 6h43m 18h21m 18h55m 4h30m 6h09m 0.95
2018-11-21 6h10m 6h45m 18h20m 18h55m 5h38m 6h10m 0.99
2018-11-22 6h11m 6h46m 18h19m 18h54m – – 0.99
2018-11-23 6h12m 6h47m 18h19m 18h54m – – 1.00
2018-11-24 6h13m 6h48m 18h18m 18h53m – – 0.99
2018-11-25 6h14m 6h49m 18h18m 18h53m 18h53m 19h38m 0.94
2018-11-26 6h15m 6h50m 18h17m 18h52m 18h52m 20h43m 0.88
2018-11-27 6h16m 6h51m 18h17m 18h52m 18h52m 21h52m 0.79
2018-11-28 6h17m 6h52m 18h16m 18h51m 18h51m 23h05m 0.68
2018-11-29 6h18m 6h53m 18h16m 18h51m 18h51m – 0.56
2018-11-30 6h19m 6h54m 18h16m 18h51m 18h51m 0h17m 0.44
2018-10-31 6h45m 7h19m 19h40m 20h14m 20h14m – 0.53

Twilight calendar was generated using Cartes du Ciel (Sky Charts).

See my blog post: Twilight Zone for the definitions of the different periods of twilight here: https://bobmoler.wordpress.com/2018/09/27/

NASA Calendar of Planetary Events

      Time  
Nov 1 Th Venus: 10.6° W
1 Th 11:16:00 PM Moon-Regulus: 2.1° S
5 Mo 12:31:00 PM South Taurid Shower: ZHR = 10
6 Tu 09:59:00 AM Mercury Elongation: 23.3° E
7 We 11:02:00 AM New Moon
8 Th 11:56:00 PM Mercury-Antares: 1.8° N
11 Su 10:46:00 AM Moon-Saturn: 1.6° S
11 Su 09:21:00 PM Moon South Dec.: 21.4° S
12 Mo 11:48:00 AM North Taurid Shower: ZHR = 15
13 Tu 09:04:00 AM Moon Descending Node
14 We 10:57:00 AM Moon Apogee: 404300 km
14 We 06:23:00 PM Venus-Spica: 1.5° S
15 Th 09:54:00 AM First Quarter
15 Th 11:16:00 PM Moon-Mars: 1.1° N
17 Sa 06:05:00 PM Leonid Shower: ZHR = 15
23 Fr 12:39:00 AM Full Moon
23 Fr 04:11:00 PM Moon-Aldebaran: 1.7° S
25 Su 08:48:00 PM Moon North Dec.: 21.5° N
26 Mo 01:25:00 AM Jupiter Conjunction
26 Mo 07:10:00 AM Moon Perigee: 366600 km
27 Tu 12:18:00 AM Moon Ascending Node
27 Tu 04:10:00 AM Mercury Inferior Conj.
27 Tu 03:57:00 PM Moon-Beehive: 0.8° N
29 Th 04:27:00 AM Moon-Regulus: 2.4° S
29 Th 07:19:00 PM Last Quarter
All event times are given for UTC-5:00: Eastern Standard or Daylight Time

Sky Events Calendar by Fred Espenak and Sumit Dutta (NASA’s GSFC),
http://eclipse.gsfc.nasa.gov/SKYCAL/SKYCAL.html

If you go to the above site you can print out a list like the above for the entire year
or calendar pages for your time zone.

Sun and Moon Rising and Setting Events

Ephemeris of Sky Events for Interlochen/TC
November 2018 – Local time zone: EDT/EST
Date Sun Twilight* Moon Illum
Rise Set Hours End Start Phase R/S** Time Fract
Thu 1 08:20a 06:31p 10:11 07:36p 07:15a Rise 02:14a 35
Fri 2 08:21a 06:29p 10:08 07:34p 07:16a Rise 03:27a 25
Sat 3 08:22a 06:28p 10:05 07:33p 07:17a Rise 04:39a 16
*** Time Change – EST – Time Change ***
Sun 4 07:24a 05:27p 10:02 06:32p 06:19a Rise 04:50a 9
Mon 5 07:25a 05:25p 10:00 06:31p 06:20a Rise 06:00a 3
Tue 6 07:27a 05:24p 09:57 06:30p 06:21a Rise 07:09a 1
Wed 7 07:28a 05:23p 09:55 06:29p 06:22a New Set 05:52p 0
Thu 8 07:29a 05:22p 09:52 06:28p 06:23a Set 06:26p 2
Fri 9 07:31a 05:21p 09:49 06:26p 06:25a Set 07:03p 6
Sat 10 07:32a 05:19p 09:47 06:25p 06:26a Set 07:46p 11
Sun 11 07:33a 05:18p 09:44 06:25p 06:27a Set 08:33p 18
Mon 12 07:35a 05:17p 09:42 06:24p 06:28a Set 09:25p 26
Tue 13 07:36a 05:16p 09:40 06:23p 06:29a Set 10:20p 35
Wed 14 07:37a 05:15p 09:37 06:22p 06:31a Set 11:18p 44
Thu 15 07:39a 05:14p 09:35 06:21p 06:32a F Qtr Set 12:18a 54
Fri 16 07:40a 05:13p 09:33 06:20p 06:33a Set 01:18a 63
Sat 17 07:41a 05:12p 09:30 06:19p 06:34a Set 02:20a 72
Sun 18 07:43a 05:11p 09:28 06:19p 06:35a Set 03:24a 80
Mon 19 07:44a 05:10p 09:26 06:18p 06:36a Set 04:29a 88
Tue 20 07:45a 05:10p 09:24 06:17p 06:38a Set 05:37a 94
Wed 21 07:47a 05:09p 09:22 06:17p 06:39a Set 06:47a 98
Thu 22 07:48a 05:08p 09:20 06:16p 06:40a Set 07:58a 100
Fri 23 07:49a 05:07p 09:18 06:15p 06:41a Full Rise 05:55p 99
Sat 24 07:50a 05:07p 09:16 06:15p 06:42a Rise 06:42p 96
Sun 25 07:52a 05:06p 09:14 06:14p 06:43a Rise 07:39p 90
Mon 26 07:53a 05:06p 09:12 06:14p 06:44a Rise 08:43p 82
Tue 27 07:54a 05:05p 09:10 06:14p 06:45a Rise 09:52p 72
Wed 28 07:55a 05:04p 09:09 06:13p 06:46a Rise 11:05p 61
Thu 29 07:56a 05:04p 09:07 06:13p 06:47a L Qtr Rise 12:17a 50
Fri 30 07:58a 05:04p 09:06 06:13p 06:48a Rise 01:28a 39
* Nautical Twilight
** Rise or set whichever occurs between sunset and sunrise