|Star Chart for Phoenix, AZ|
|Sun/Moon Data for Phoenix, AZ:|
DIY Sunspot Viewer
0% illuminated - New Moon
Moonrise: 0653 (28 Mar 2017)
New Moon: Wed 26 Apr 2017 0517 MST
Full Moon: Mon 10 Apr 2017 2309 MST
Graph courtesy: Newquay Weather
Its estimated that the number of stars in the universe is greater than the number of grains of sand on all the beaches in the world! On a clear night, we can see the equivalent of a handful of sand.
|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.