David's Astronomy Pages
Sky Brightness Measurements

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

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Sky Brightness (2006-04-26)

Sky Conditions Summary  (S117)
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Sky Brightness Survey (2005-12-21)

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Sky Brightness Survey (2005-10-30)

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Sky Brightness Survey (2005-10-02)

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Sky Brightness Survey (2005-09-02)

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Sky Brightness Survey (2005-08-14)

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Sky Brightness (January - June 2005 Comparison)

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

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

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Sky Brightness Survey (2003-10-17)

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This Web Page: Sky Brightness Measurements
Last Updated : 2015-05-16
Site Owner : David Richards
Home Page : David's Astronomy Web Site