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Astronomy

Aug. 17, 2017 Rise Solar Noon Set
Actual Time 5:45 AM BST 1:02 PM BST 8:18 PM BST
Civil Twilight 5:07 AM BST   8:55 PM BST
Nautical Twilight 4:19 AM BST   9:43 PM BST
Astronomical Twilight 3:20 AM BST   10:41 PM BST
Altitude -0.8° 51.2° -0.8°
Azimuth 66.7° 180.0° 292.9°
Hour Angle of the Sun 109.2° 109.1° -109.0°
Mean Anomaly of the Sun 222.53° 222.83° 223.12°
Obliquity 23.43° 23.43° 23.43°
Right Ascension of the Sun 146.78° 147.06° 147.35°
Sun Declination 13.36° 13.26° 13.16°
Moon 12:55 AM BST   4:57 PM BST
Length of Visible Light 15h 48m
Length of Day
14h 32m
Waning Crescent, 28% of the Moon is Illuminated
Aug 16
Waning Crescent
Aug 21
New
Aug 29
First Quarter
Sep 6
Full
Sep 13
Last Quarter