Sun/Moon Data for Joliet IL
DIY Sunspot Viewer
14% illuminated - Waxing Crescent Moon
Moonrise: 9:36am (25-Nov-2014)
New Moon: Sun, 21-Dec-2014 7:36pm CST
Full Moon: Sat, 06-Dec-2014 6:27am CST
Scientists believe that we can only see about 5% of the matter in the Universe. The rest is made up of invisible matter (called Dark Matter) and a mysterious form of energy known as Dark Energy.
Riley Observatory is located in Naperville, IL just north of Joliet. Forecasts courtesy of: ClearSky and 7timer
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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:
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