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Eris was discovered by the team of Mike Brown, Chad Trujillo, and David Rabinowitz [2] on January 5, 2005, from images taken on October 21, 2003. [31] The discovery was announced on July 29, 2005, the same day as Makemake and two days after Haumea, [32] due in part to events that would later lead to controversy about Haumea.
Eris: 67.8 — Average distance from the Sun — Voyager 2: 137 — Distance from the Sun in October 2024 [60] Voyager 1: 165 — Distance from the Sun in October 2024 [60] Light-day: 173 — Distance light travels in one day — Light-year: 63 241 — Distance light travels in one Julian year (365.25 days) — Oort cloud: 75 000: ± 25 000
136199 Eris: 557 1.002 365.9 90377 Sedna: 12050 1.0001 365.3 [citation needed] In the case of a planet's moon, the synodic period usually means the Sun-synodic period ...
Dwarf planet Eris, similar in size to its better-known cosmic cousin Pluto, has remained an enigma since being discovered in 2005 lurking in the solar system's far reaches. While Pluto was ...
In astronomy, the rotation period or spin period [1] of a celestial object (e.g., star, planet, moon, asteroid) has two definitions. The first one corresponds to the sidereal rotation period (or sidereal day), i.e., the time that the object takes to complete a full rotation around its axis relative to the background stars (inertial space).
In February 2016, Eris's distance from the Sun was 96.3 AU (14.41 billion km; 8.95 billion mi), more than three times that of Neptune or Pluto. With the exception of long-period comets, Eris and Dysnomia were the most distant known natural objects in the Solar System until the discovery of 2018 AG 37 and 2018 VG 18 in 2018. (Full article...
On Feb. 28, 2025, all planets will be on the same side of the sun for a great planetary alignment. On Aug. 29, 2025, there will be a planetary alignment of six planets: Mercury, Venus, Jupiter ...
The naked eye planets, which include Mercury, Mars, Jupiter, and Saturn, will not all become visible in Tennessee until around 5 a.m. Central Time, since Mercury and Jupiter are very low in the sky.