Asteroids and TNOs with satellites (495 systems, 515 companions as of 6 June 2023)
Pluto and its moons (Pluto system summary information and images, following New Horizons flyby)
A TEXAN definition of a planet
1I 'Oumuamua (2017 U1): The first interstellar object within our solar system
solar system, general:
other trans-Neptunian planets:
interstellar objects within the solar system:
solar system exploration:
stellar and extrasolar planet information:
A brief commentary on sky watching--a synopsis of things to look for in the night sky and links for more information. Some specific information for observers in parts of Texas is included.
Observing man-made Earth satellites--a discussion of how to look for visible satellites in the night sky.
Heaven's Above predictions for viewing satellites from Brownsville, TX (external link)
Links for sky watchers
Astronomy information links
Other space links
Banner image: Io and Jupiter, taken by Cassini in 2000 (credit: NASA/JPL/Univ. of Arizona).
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Copyright © 2001-2022, 2023 by Wm. Robert Johnston. All rights reserved.