Astronomy
Interactive Star Chart
Powered by: Distant Suns
Click on a star, planet, sun or moon for more information.
View Direction

Click "Up" to view the entire sky.

   
   
Date & Time
Date:
Time:
 
Display Features
Planets
Constellations
Constellation Names
Constellation Borders
Star Names
Grid
Sky Line
Info
 
Astronomy
May. 21, 2013 Rise Solar Noon Set
Actual Time 5:09 AM MDT 12:55 PM MDT 8:41 PM MDT
Civil Twilight 4:30 AM MDT   9:21 PM MDT
Nautical Twilight 3:38 AM MDT   10:13 PM MDT
Astronomical Twilight 2:26 AM MDT   11:26 PM MDT
Altitude -0.8° 61.5° -0.8°
Azimuth 57.1° 180.0° 303.1°
Hour Angle of the Sun 116.5° 116.6° -116.6°
Mean Anomaly of the Sun 136.09° 136.41° 136.73°
Obliquity 23.44° 23.44° 23.44°
Right Ascension of the Sun 58.41° 58.73° 59.06°
Sun Declination 20.27° 20.33° 20.40°
Moon 4:41 PM MDT (5/21)   2:59 AM MDT (5/21)
Length Of Visible Light 16h 50m
Length of Day
15h 32m
Waxing Gibbous, 87% of the Moon is Illuminated
May 21
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter
Visit Astronomy