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2. Planetary phase - Wikipedia

   en.wikipedia.org/wiki/Planetary_phase

   The superior planets, orbiting outside the Earth's orbit, do not exhibit a full range of phases since their maximum phase angles are smaller than 90°. Mars often appears significantly gibbous, it has a maximum phase angle of 45°. Jupiter has a maximum phase angle of 11.1° and Saturn of 6°, [1] so their phases are almost always full.

3. Elongation (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Elongation_(astronomy)

   This diagram shows various possible elongations (ε), each of which is the angular distance between a planet and the Sun from Earth's perspective. In astronomy, a planet's elongation is the angular separation between the Sun and the planet, with Earth as the reference point. [1] The greatest elongation is the maximum angular separation.

4. Inferior and superior planets - Wikipedia

   en.wikipedia.org/wiki/Inferior_and_superior_planets

   In the reference frame of the Earth, where the terms were originally used, the inferior planets are Mercury and Venus, while the superior planets are Mars, Jupiter, Saturn, Uranus and Neptune. Dwarf planets like Ceres or Pluto and most asteroids are 'superior' in the sense that they almost all orbit outside the orbit of Earth.

5. Phase angle (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Phase_angle_(astronomy)

   For some objects, such as the Moon (see lunar phases), Venus and Mercury the phase angle (as seen from the Earth) covers the full 0–180° range. The superior planets cover shorter ranges. For example, for Mars the maximum phase angle is about 45°. For Jupiter, the maximum is 11.1° and for Saturn 6°. [1]

6. List of planet types - Wikipedia

   en.wikipedia.org/wiki/List_of_planet_types

   A planet that orbits a pulsar or a rapidly rotating neutron star. PSR B1257+12 A, B and C: Rogue planet: Also known as an interstellar planet. A planet that is not bound to any star, stellar remnant or brown dwarf. OGLE-2016-BLG-1928: Superior planets: Planets whose orbits lie outside the orbit of Earth. [nb 1] Jupiter, Saturn, Uranus and ...

7. Phase curve (astronomy) - Wikipedia

   en.wikipedia.org/wiki/Phase_curve_(astronomy)

   The apparent brightness of Mercury as seen from Earth is greatest at phase angle 0° (superior conjunction with the Sun) when it can reach magnitude −2.6. [14] At phase angles approaching 180° (inferior conjunction) the planet fades to about magnitude +5 [14] with the exact brightness depending on the phase angle at that particular ...

8. List of Solar System objects by size - Wikipedia

   en.wikipedia.org/wiki/List_of_Solar_System...

   For the small outer irregular moons of Uranus, such as Sycorax, which were not discovered by the Voyager 2 flyby, even different NASA web pages, such as the National Space Science Data Center [6] and JPL Solar System Dynamics, [5] give somewhat contradictory size and albedo estimates depending on which research paper is being cited.

9. Timeline of discovery of Solar System planets and their moons

   en.wikipedia.org/wiki/Timeline_of_discovery_of...

   The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...