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Star Chart for Joliet IL |
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| Sun/Moon Data for Joliet IL: | |||
Sunspot Activity
Space Weather |
Sunset: 5:33pm Sunrise: 6:38am DIY Sunspot Viewer |
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1% illuminated - New Moon Moonrise: 6:35am (22-Feb-2012) New Moon: Thu, 22-Mar-2012 9:38am CDT Full Moon: Thu, 08-Mar-2012 3:40am CST |
Astronomy Fact
Light from distant stars and galaxies takes so long to reach us, that we are actually seeing objects as they appeared hundreds, thousands or even millions of years ago. So, as we look up at the sky, we are really looking back in time.
Qazi Observatory is a private observatory located in Plainfield, IL just west of Joliet. Forecasts courtesy of: ClearSky and 7timer
| Color Key |
| Worse | Better | Best | Sky (including Wind) | ||||||||||
| Worse | Best | Worse | Ground |
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 MadALwx. Page template and Facts script courtesy of: TNET Weather.
Page Template and Moon script courtesy of: Saratoga Weather.