Ephemeris Star Charts – September 2018

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 p.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 3 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.

5:00 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. Not all constellations are shown, faint and small ones were deleted for overall clarity. 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

Traverse City

Long=85°37'14"West

Lat=+44°45'47"

Time zone=/EDT






Morning twilight

Evening twilight

Dark night

Moon

Date

Astronomical

Nautical

Nautical

Astronomical

Start

End

Illum.

2018-09-01

5h26m

6h04m

21h29m

22h07m

22h07m

23h43m

0.68

2018-09-02

5h27m

6h05m

21h27m

22h05m

22h05m

-

0.57

2018-09-03

5h29m

6h07m

21h25m

22h03m

22h03m

0h21m

0.46

2018-09-04

5h30m

6h08m

21h23m

22h00m

22h00m

1h08m

0.34

2018-09-05

5h32m

6h09m

21h21m

21h58m

21h58m

2h03m

0.23

2018-09-06

5h33m

6h11m

21h19m

21h56m

21h56m

3h08m

0.14

2018-09-07

5h35m

6h12m

21h17m

21h54m

21h54m

4h19m

0.06

2018-09-08

5h36m

6h13m

21h15m

21h51m

21h51m

5h35m

0.02

2018-09-09

5h38m

6h15m

21h13m

21h49m

21h49m

5h38m

0.00

2018-09-10

5h39m

6h16m

21h10m

21h47m

21h47m

5h39m

0.01

2018-09-11

5h41m

6h17m

21h08m

21h45m

21h45m

5h41m

0.06

2018-09-12

5h42m

6h19m

21h06m

21h43m

21h57m

5h42m

0.12

2018-09-13

5h44m

6h20m

21h04m

21h41m

22h27m

5h44m

0.21

2018-09-14

5h45m

6h21m

21h02m

21h38m

23h00m

5h45m

0.30

2018-09-15

5h47m

6h23m

21h00m

21h36m

23h37m

5h47m

0.40

2018-09-16

5h48m

6h24m

20h58m

21h34m

-

5h48m

0.50

2018-09-17

5h50m

6h25m

20h56m

21h32m

0h18m

5h50m

0.60

2018-09-18

5h51m

6h26m

20h54m

21h30m

1h03m

5h51m

0.70

2018-09-19

5h52m

6h28m

20h52m

21h28m

1h53m

5h52m

0.78

2018-09-20

5h54m

6h29m

20h50m

21h26m

2h47m

5h54m

0.86

2018-09-21

5h55m

6h30m

20h48m

21h24m

3h44m

5h55m

0.92

2018-09-22

5h56m

6h31m

20h47m

21h22m

4h44m

5h56m

0.92

2018-09-23

5h58m

6h33m

20h45m

21h19m

5h45m

5h58m

0.96

2018-09-24

5h59m

6h34m

20h43m

21h17m

-

-

0.99

2018-09-25

6h00m

6h35m

20h41m

21h15m

-

-

1.00

2018-09-26

6h02m

6h36m

20h39m

21h13m

-

-

0.99

2018-09-27

6h03m

6h38m

20h37m

21h11m

21h11m

21h12m

0.95

2018-09-28

6h04m

6h39m

20h35m

21h09m

21h09m

21h44m

0.89

2018-09-29

6h06m

6h40m

20h33m

21h07m

21h07m

22h21m

0.81

2018-09-30

6h07m

6h41m

20h31m

21h05m

21h05m

23h04m

0.72

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 09/02/18