superior conjunction
31Astronomy on Mars — Mosaic of two different Mars Global Surveyor Mars Orbiter Camera (MOC) exposures of Earth, the Moon, and Jupiter from 2003 …
32Ashen light — was first sighted by the astronomer Giovanni Battista Riccioli on January 9 1643, it is a subtle glow that is seen from the night side of the planet Venus. Night side means the opposite side of the observed planet from where the sun is shining.… …
33Apparent magnitude — Asteroid 65 Cybele and 2 stars with their magnitudes labeled The apparent magnitude (m) of a celestial body is a measure of its brightness as seen by an observer on Earth, normalized to the value it would have in the absence of the atmosphere.… …
34Mariner 5 — Operator JPL NASA Mission type Fly by Flyby of Venus …
35Vulcan (hypothetical planet) — Vulcan was a small planet proposed to exist in an orbit between Mercury and the Sun in a 19th century hypothesis. This hypothesis has now been rendered obsolete by Albert Einstein s theory of general relativity.Argument for Vulcan s existenceIn… …
363753 Cruithne — Discovery Discovered by Duncan Waldron Discovery date October 10, 1986 …
37Cygnus X-1 — For other uses, see Cygnus X 1 (disambiguation). HDE 226868 HDE 226868 (not shown) is located next to the star η (lower center) in this map of constellation Cygnus …
38Venera 15 and 16 — Venera 15 and Venera 16 ( ru. Венера 15, Венера 16) were two identical spacecraft sent to Venus by the Soviet Union. Both unmanned orbiters were to map the surface of Venus using high resolution imaging systems. The spacecraft were identical and… …
39Astronomical transit — The term transit or astronomical transit has three meanings in astronomy:* A transit is the astronomical event that occurs when one celestial body appears to move across the face of another celestial body, as seen by an observer at some… …
40Pioneer 6, 7, 8, and 9 — Infobox Spacecraft Caption = Artists conception of the Pioneer 6 9 spacecraft Name = Pioneer 6, 7, 8, and 9 Mass = 146, 138, 146, 147 kg Organization = NASA Launch Vehicle = Delta E Launch = 16 December 1965 at 07:31:00 UTC 17 August 1966 at… …
