Star Chart for Chester, CA
|Sun/Moon Data for Chester, CA:|
DIY Sunspot Viewer
96% illuminated - Waxing Gibbous Moon
Moonrise: 5:53pm (22-May-2013)
New Moon: Sat, 08-Jun-2013 8:57am PDT
Full Moon: Fri, 24-May-2013 9:25pm PDT
Only one side of the Moon ever faces Earth. The Moon's period of rotation is exactly the same as it's period of orbit.
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Space Track-Satellite Passes
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.
Script courtesy of: Lee from Page template and Facts script courtesy of:
Page Template and Moon script courtesy of: