Ephemeris Star Charts – January 2023

Contents:

Monthly Star Chart s for Northern Michigan (about 45° North)
Twilight ranges for the Grand Traverse Area
Monthly star chart for the Southern Hemisphere

The charts contain the entire dome of the sky as seen from around 45 degrees north latitude and at the dates and times for the locations listed below.

Planet positions are plotted for the 15th of the month. The moon is not shown. To track the planet positions at weekly intervals go to my Ephemeris Blog for my Wednesday posting at bobmoler.wordpress.com.

The charts contain the entire dome of the sky as seen from around 45 degrees north latitude and at the dates and times for the locations listed below.

January Evening Star Chart

Date	Grand Traverse region, Michigan - Eastern Time
1^st	10:00 pm EST
8^th	9:30 pm EST
15^th	9:00 pm EST
22^nd	8:30 pm EST
29^th	8:00 pm EST

January Morning Star Chart

For early birds I’m including a morning star chart too, which shows the stars we’ll see in the evening 4 months from now.

Date	Grand Traverse region, Michigan - Eastern Time
1^st	7:00 am EST
8^th	6:30 am EST
15^th	6:00 am EST
22^nd	5:30 am EST
29^th	5:00 am EST

If you want to convert the above times for your locality in North America click here.

The outer edge of the chart is the horizon with the compass points marked. The chart is oriented as one is looking south. The constellation utlines in magenta are those of the Zodiac. The magenta line is the ecliptic, the path of the sun. The white line that passes through the east and west compass points is the celestial equator, above the earth's equator. The white lines that cross in the north at the north celestial pole are major right ascension lines and are like meridians on the earth.

All constellations shown have the standard three letter abbreviation. The constellation abbreviations, names and bright star names are found here.

Also on the sky dome are helps to locate other stars and constellations from the Big Dipper, and asterisms.

The arrow from the pointer stars of the Big Dipper to Polaris the North Star, near the north celestial pole.
Leaky Big Dipper drips on Leo
Follow the arc of the handle of the Big Dipper to Arcturus,
The Summer Triangle is in red
GemR – Geminid meteor shower radiant. This shower is caused by debris from asteroid or dead comet nucleus 3200 Phaethon. It is currently the most spectacular annual shower. If only our December nights were warm and clear.

Twilight, Astronomical and Nautical

			EST
	Morning	Twilight	Evening	Twilight	Dark	Night	Moon
Date	Astro.	Nautical	Nautical	Astro.	Start	End	Illum.
2023-01-01	6h35m	7h11m	18h22m	18h57m	3h19m	6h35m	0.8
2023-01-02	6h35m	7h11m	18h23m	18h58m	4h28m	6h35m	0.88
2023-01-03	6h35m	7h11m	18h24m	18h59m	5h36m	6h35m	0.93
2023-01-04	6h35m	7h11m	18h24m	19h00m	-	-	0.97
2023-01-05	6h35m	7h11m	18h25m	19h01m	-	-	0.99
2023-01-06	6h35m	7h11m	18h26m	19h01m	-	-	1
2023-01-07	6h35m	7h11m	18h27m	19h02m	-	-	0.99
2023-01-08	6h35m	7h10m	18h28m	19h03m	-	-	0.96
2023-01-09	6h35m	7h10m	18h29m	19h04m	19h04m	19h56m	0.91
2023-01-10	6h35m	7h10m	18h30m	19h05m	19h05m	21h01m	0.85
2023-01-11	6h35m	7h10m	18h31m	19h06m	19h06m	22h06m	0.77
2023-01-12	6h35m	7h10m	18h32m	19h07m	19h07m	23h10m	0.69
2023-01-13	6h34m	7h09m	18h33m	19h08m	19h08m	-	0.59
2023-01-14	6h34m	7h09m	18h34m	19h09m	19h09m	0h16m	0.49
2023-01-15	6h34m	7h09m	18h35m	19h10m	19h10m	1h24m	0.38
2023-01-16	6h33m	7h08m	18h37m	19h11m	19h11m	2h36m	0.28
2023-01-17	6h33m	7h08m	18h38m	19h13m	19h13m	3h52m	0.18
2023-01-18	6h32m	7h07m	18h39m	19h14m	19h14m	5h11m	0.1
2023-01-19	6h32m	7h07m	18h40m	19h15m	19h15m	6h29m	0.04
2023-01-20	6h31m	7h06m	18h41m	19h16m	19h16m	6h31m	0.01
2023-01-21	6h31m	7h05m	18h42m	19h17m	19h17m	6h31m	0
2023-01-22	6h30m	7h05m	18h44m	19h18m	19h18m	6h30m	0.03
2023-01-23	6h30m	7h04m	18h45m	19h19m	20h05m	6h30m	0.08
2023-01-24	6h29m	7h03m	18h46m	19h20m	21h26m	6h29m	0.16
2023-01-25	6h28m	7h03m	18h47m	19h22m	22h43m	6h28m	0.25
2023-01-26	6h28m	7h02m	18h48m	19h23m	23h57m	6h28m	0.35
2023-01-27	6h27m	7h01m	18h50m	19h24m	-	6h27m	0.46
2023-01-28	6h26m	7h00m	18h51m	19h25m	1h09m	6h26m	0.56
2023-01-29	6h25m	6h59m	18h52m	19h26m	2h19m	6h25m	0.66
2023-01-30	6h24m	6h58m	18h53m	19h28m	3h28m	6h24m	0.75
2023-01-31	6h23m	6h58m	18h55m	19h29m	4h35m	6h23m	0.82

The above was created by the calendar function of Cartes du Ciel (Sky Charts)

Monthly Evening Star Chart for Observers in the Southern Hemisphere

The chart contains the entire dome of the sky as seen from around 26 degrees south latitude at 2 hours after sunset on the 15th of the month.

Planet positions are also plotted for the 15th of the month. The moon is not shown. The Magellanic Clouds, which are satellite galaxies of the Milky Way. The Large Magellanic Cloud is located in the constellation Dorado (Dor) the Flying Fish. The Small Magellanic Cloud is located in the constellation of Tucana (Tuc) the Toucan.

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Questions or comments, send an email to: brelom@gmail.com

Updated 12/31/22