|Star Chart for Phoenix, AZ|
|Sun/Moon Data for Phoenix, AZ:|
DIY Sunspot Viewer
47% illuminated - Last Quarter Moon
Moonrise: 0137 (19 Feb 2017)
New Moon: Sun 26 Feb 2017 0759 MST
Full Moon: Fri 10 Feb 2017 1734 MST
Graph courtesy: Newquay Weather
Five billion years from now, our Sun will die and become a White Dwarf. Approximately two billion years after that, its ember core will crystallize, leaving a giant diamond in the center of our Solar System.
|Worse||Better||Best||Sky (including Wind)|
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: Graph base code courtesy of: jpGraph.