David's Astronomy - Sky Brightness Measurements

Sky Brightness Measurements during observing sessions between Jan 2005 & June 2005


Notes Notice how observing sessions in June (without moon) had brighter skies than the May observing sessions which had a moon Notice how shortness of June night forces observation sessions to be taken around local midnight (+/-1 hour) compared to January-March when early evening sessions are available)
Date / Session	Moon	Night Hours (sunset to sunrise)	Dark Hours (non twilight)
2005-06-10, S0089	No Moon	6h 00m	None
2005-06-07, S0088	No Moon	6h 14m	None
2005-05-17, S0087	Moon at midnight, Phase 65%, Altitude 19˚	7h 15m	None
2005-05-13, S0086	Moon at midnight, Phase 20%, Altitude 7˚	7h 31m	None
2005-04-06, S0084	No Moon	10h 21m	5h 23m
2005-03-13, S0083	No Moon at midnight (Phase 15%, Altitude 5˚ at 21:00)	12h 19m	7h 58m
2005-01-05, S0082	No Moon	17h 05m	12h 13m

	Sky Brightness Measurements
	Sky Brightness (2006-12-19)
	Sky Brightness (2006-04-26)
	Sky Brightness Survey (2005-12-21)
	Sky Brightness Survey (2005-10-30)
	Sky Brightness Survey (2005-10-02)
	Sky Brightness Survey (2005-09-02)
	Sky Brightness Survey (2005-08-14)
	Sky Brightness (Jan - Jun 2005)
	Sky Brightness Survey (2003-10-17)

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Last Updated :	2015-05-16

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Sky Brightness Measurements