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Astronomy

May. 21, 2018 Rise Solar Noon Set
Actual Time 5:00 AM BST 12:57 PM BST 8:54 PM BST
Civil Twilight 4:17 AM BST   9:38 PM BST
Nautical Twilight 3:16 AM BST   10:39 PM BST
Astronomical Twilight 1:25 AM BST   12:42 AM BST
Altitude -0.8° 58.6° -0.8°
Azimuth 55.0° 180.0° 305.2°
Hour Angle of the Sun 119.2° 119.3° -119.4°
Mean Anomaly of the Sun 135.51° 135.83° 136.16°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun 57.89° 58.23° 58.56°
Sun Declination 20.16° 20.23° 20.30°
Moon 11:17 AM BST   1:45 AM BST
Length of Visible Light 17h 20m
Length of Day
15h 54m
Waxing Crescent, 38% of the Moon is Illuminated
May 20
Waxing Crescent
May 21
First Quarter
May 29
Full
Jun 6
Last Quarter
Jun 13
New