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The slightly longer stellar period is measured as the Earth rotation angle (ERA), formerly the stellar angle. [4] An increase of 360° in the ERA is a full rotation of the Earth. A sidereal day on Earth is approximately 86164.0905 seconds (23 h 56 min 4.0905 s or 23.9344696 h).
Hippocamp completes one revolution around Neptune every 22 hours and 48 minutes (0.95 days), corresponding to a semi-major axis, or orbital distance of 105,283 km (65,420 mi). [5] For comparison, this distance is approximately 4.3 Neptune radii, or just over a quarter of the Earth–Moon distance.
Rotation period with respect to distant stars, the sidereal rotation period (compared to Earth's mean Solar days) Synodic rotation period (mean Solar day) Apparent rotational period viewed from Earth Sun [i] 25.379995 days (Carrington rotation) 35 days (high latitude) 25 d 9 h 7 m 11.6 s 35 d ~28 days (equatorial) [2] Mercury: 58.6462 days [3 ...
The start and end dates of a season on any planet of the Solar System depends on same factors valid on Earth, but which have different values on different planets: North Pole direction (rotation axis direction) Vernal equinox direction; Orbit eccentricity; Year duration; Orbit plane inclination
[3] Earth: 3rd Planet: Earth is the third planet from the Sun and the subject of historical misconception for centuries. [4] [5] Earth was never formally 'discovered' because it was never an unrecognized entity by humans. However, its shared identity with other bodies as a "planet" is a historically recent discovery.
(612533) 2002 XV 93 (provisional designation 2002 XV 93) is a trans-Neptunian object (TNO) with an absolute magnitude of 5.4. [5] A 2:3 orbital resonance with Neptune makes it a plutino. [2] It has been observed with precovery images back to 1990. [3]
Evolution Earth — Season 1 (PBS) September 7 Star Trek: Lower Decks — Season 4 (Paramount+) Virgin River — Season 5, Part 1 (Netflix) September 8 The Changeling — Limited (Apple TV+ ...
The third season aired between July 9 and September 3, 2014. [8] The fourth season premiered on July 14, 2015, as part of the Science Channel's "Space Week," in honor of New Horizons' flyby of Pluto that day; the season ran through September 1, 2015. The show's fifth season aired from November 22, 2016, through February 7, 2017. The sixth ...