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View Full Version here: : Number of dark hours throughout the year


RobF
21-01-2012, 04:54 PM
There's cloud around today and tonight, so I've had too much time messing about with Excel :P
I've plotted up the number of night hours (which for imaging nuts are ALL for imaging of course :D) for Brisbane. I did my first all-nighter session from my home site last month during holidays, but it doesn't look like such a feat when you compare max dark hours for Bris (10:49) versus this time of year (about 7:10).

If only there were 10-11hrs hours of dark clear skies this time of the year to have a decent go at the Orion region for a change :sadeyes:

glenc
21-01-2012, 05:57 PM
Attached is the dark hours for Brisbane in 2012 from SkyMapPro.
Dark is from the end of astromical twilight to moonrise, which could be after midnight, etc