Star Chart for Greendale, WI
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Tonight's Sky
Star Chart courtesy: Weather Underground

Sun/Moon Data for Greendale, WI:
Good daySunriseSunset
Official Time06:37 AM CST05:33 PM CST
Civil Twilight06:08 AM CST06:02 PM CST

Sunspot Activity
DIY Sunspot Viewer

On this date: Feb 21 2018 17:18:08

Phase: Waxing Crescent; Moon at 7 days in cycle

The position (phase)within the moon's cycle:0.722070647984
The phase name:Waxing Crescent
The percentage of lunar illumination is:41.3%
The days until the next full moon are:8.21
The days until the next new moon are: 23
The days until the next first quarter moon are: 0.8
The days until the next last quarter moon are: 15.6

  Click Image for Current Space Weather....

Space Weather

Astronomy Fact
Light from the sun takes 8 minutes to reach you, thus you see the sun as it was 8 minutes ago. It might have blown up 4 minutes ago and you wouldn't know about it!

Sky Forecast
Forecasts courtesy of: ClearSky and 7timer
Color Key            
Worse                          Better                          Best Sky (including Wind)
Worse                          Best                          Worse Ground

Space Track-Satellite Passes

International Space Station View Look AnglesESV Ground Trace
Satellite Ground Trace courtesy:
Bright Satellite List for your location.

Notes about viewing ESVs:
When using lookangles, choose passes with high magnitudes; less than 6.0. ("Looks" are local time.)
Best viewing is when ESV is in Earth's penumbra; on the map, it's the solid line during night.
Dotted line on map denotes ESV is dark, in Earth's umbra (shadow).
Objects in orbit have to maintain a speed of at least 17,500mph, therefore ESVs traverse the sky noticeably different than aircraft.
ESVs appearing to blink are either tumbling rocket bodies, or spinning payloads with deployed solar arrays.
High-Eccentricity objects have a more ellongated orbit. Ground trace looks like a backwards C.
Regression-Ground traces will move West with each orbit due to Earth's rotation.

Stellar Neighbors

Click on any star for more details.

Script courtesy of: Lee from MadALwx. Page template and Facts script courtesy of: TNET Weather.
Page Template and Moon script courtesy of: Saratoga Weather.