Ephemeris Star Charts – September 2020

Contents:


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.

September Evening Star Chart

Date

Grand Traverse region, Michigan - Eastern Time

1st.

11:00 m. EDT

8th.

10:30 p.m. EDT

15th.

10:00 p.m. EDT

22nd.

9:30 p.m. EDT

29th.

9:00 p.m. EDT


September 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

1st.

7:00 a.m. EDT

8th.

6:30 a.m. EDT

15th.

6:00 a.m. EDT

22nd.

5:30 a.m. EDT

29th.

4:00 a.m. EDT

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 outlines 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.

Twilight, Astronomical and Nautical




EDT






Morning twilight

Evening twilight

Dark night

Moon

Date

Astro.

Nautical

Nautical

Astro.

Start

End

Illum.

2020-09-01

5h26m

6h05m

21h28m

22h06m

-

-

0.99

2020-09-02

5h28m

6h06m

21h26m

22h04m

-

-

1

2020-09-03

5h30m

6h07m

21h24m

22h01m

-

-

0.99

2020-09-04

5h31m

6h09m

21h22m

21h59m

-

-

0.96

2020-09-05

5h33m

6h10m

21h20m

21h57m

21h57m

22h01m

0.91

2020-09-06

5h34m

6h11m

21h18m

21h55m

21h55m

22h22m

0.85

2020-09-07

5h36m

6h13m

21h16m

21h53m

21h53m

22h46m

0.77

2020-09-08

5h37m

6h14m

21h13m

21h50m

21h50m

23h14m

0.69

2020-09-09

5h39m

6h15m

21h11m

21h48m

21h48m

23h47m

0.59

2020-09-10

5h40m

6h17m

21h09m

21h46m

21h46m

-

0.49

2020-09-11

5h42m

6h18m

21h07m

21h44m

21h44m

0h28m

0.39

2020-09-12

5h43m

6h19m

21h05m

21h42m

21h42m

1h19m

0.29

2020-09-13

5h45m

6h21m

21h03m

21h39m

21h39m

2h19m

0.19

2020-09-14

5h46m

6h22m

21h01m

21h37m

21h37m

3h27m

0.11

2020-09-15

5h47m

6h23m

20h59m

21h35m

21h35m

4h42m

0.05

2020-09-16

5h49m

6h24m

20h57m

21h33m

21h33m

5h49m

0.01

2020-09-17

5h50m

6h26m

20h55m

21h31m

21h31m

5h50m

0

2020-09-18

5h52m

6h27m

20h53m

21h29m

21h29m

5h52m

0.03

2020-09-19

5h53m

6h28m

20h51m

21h27m

21h27m

5h53m

0.08

2020-09-20

5h54m

6h30m

20h49m

21h25m

21h50m

5h54m

0.16

2020-09-21

5h56m

6h31m

20h47m

21h23m

22h25m

5h56m

0.26

2020-09-22

5h57m

6h32m

20h46m

21h20m

23h05m

5h57m

0.38

2020-09-23

5h59m

6h33m

20h44m

21h18m

23h54m

5h59m

0.49

2020-09-24

6h00m

6h35m

20h42m

21h16m

-

6h00m

0.6

2020-09-25

6h01m

6h36m

20h40m

21h14m

0h49m

6h01m

0.71

2020-09-26

6h03m

6h37m

20h38m

21h12m

1h51m

6h03m

0.8

2020-09-27

6h04m

6h38m

20h36m

21h10m

2h55m

6h04m

0.87

2020-09-28

6h05m

6h40m

20h34m

21h08m

4h01m

6h05m

0.93

2020-09-29

6h06m

6h41m

20h32m

21h06m

5h06m

6h06m

0.93

2020-09-30

6h08m

6h42m

20h30m

21h04m

-

-

0.97


The above times calculated 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: bob@bjmoler.org

Updated 09/07/20