Tuesday, January 05, 2021

looked up Sirius transits

SkyTools to the rescue once again...

I wanted to know when Sirius was hitting the meridian. When it culminates will be the best time to try to view the double star and it the dim companion. Started in Stellarium and used the sidereal day advance but that was too slow.

Opened ST3P. I used the Ephemeris tab in the app requesting the best time to view the brightest star in the night sky.

Nightly Optimal Viewing Ephemeris for Sirius

Date of Evening Time Dark %
2021 Jan 3 00:14 80
2021 Jan 4 23:02 85
2021 Jan 5 00:00 86
2021 Jan 6 23:57 86
2021 Jan 7 23:53 86
2021 Jan 8 23:49 86
2021 Jan 9 23:45 86
2021 Jan 10 23:41 86
2021 Jan 11 23:37 86
2021 Jan 12 23:33 86
2021 Jan 13 23:29 86
2021 Jan 14 23:25 86
2021 Jan 15 23:21 86
2021 Jan 16 23:18 86
2021 Jan 17 23:13 86
2021 Jan 18 23:11 86
2021 Jan 19 23:03 84
2021 Jan 20 22:58 83
2021 Jan 21 22:55 82
2021 Jan 22 22:52 80
2021 Jan 23 22:48 79
2021 Jan 24 22:44 77
2021 Jan 25 22:40 75
2021 Jan 26 22:37 74
2021 Jan 27 22:34 74
2021 Jan 28 22:31 74
2021 Jan 29 22:29 75
2021 Jan 30 22:29 76
2021 Jan 31 20:52 85
2021 Feb 1 22:06 86
2021 Feb 2 22:10 86
2021 Feb 3 22:07 86

So at midnight right now but creeping to earlier times as the month wears on... 11 PM around the 19th; 10 PM when February starts...

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