(44597) Thoreau
Asteroid (44597) Thoreau |
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Properties of the orbit ( animation ) | |
Orbit type | Inner main belt asteroid |
Major semi-axis | 2.2538 AU |
eccentricity | 0.1180 |
Perihelion - aphelion | 1.9878 AU - 2.5197 AU |
Inclination of the orbit plane | 5.0442 ° |
Length of the ascending node | 208.4908 ° |
Argument of the periapsis | 7.4863 ° |
Time of passage of the perihelion | January 12, 2019 |
Sidereal period | 3.38 a |
Mean orbital velocity | 19.84 km / s |
Physical Properties | |
Absolute brightness | 15.4 mag |
history | |
Explorer | Jana Tichá , Miloš Tichý |
Date of discovery | August 6, 1999 |
Another name | 1999 PW |
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. |
(44597) Thoreau is an asteroid of the main inner belt that was discovered on August 6, 1999 by the Czech astronomer couple Jana Tichá and Miloš Tichý at the Kleť observatory ( IAU code 046) near Český Krumlov .
Mean solar distance ( major semi-axis ), eccentricity and inclination of the orbit plane of the asteroid are similar to the orbital data of the members of the Flora family, a large group of asteroids named after (8) Flora . Asteroids of this family move in a 4: 9 orbital resonance with the planet Mars around the sun . The group is also called the Ariadne family, after the asteroid (43) Ariadne .
(44597) Thoreau was named on September 10, 2003 after the American writer and philosopher Henry David Thoreau (1817-1862). Jana Tichá had visited Thoreau's cabin on Walden Pond in Concord , Massachusetts . As early as 1985, an impact crater on the northern hemisphere of the planet Mercury was named after Henry David Thoreau: Mercury crater Thoreau .
Web links
- (44597) Thoreau in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (44597) Thoreau in the Small-Body Database of the Jet Propulsion Laboratory .
Individual evidence
- ↑ Entry of the asteroid on the website of the Kleť Observatory (English)
- ↑ The Mercury crater Thoreau in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS