(249523) Friedan
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Asteroid (249523) Friedan |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main outer belt asteroid |
| Asteroid family | Euphrosyne family |
| Major semi-axis | 3.1890 AU |
| eccentricity | 0.1924 |
| Perihelion - aphelion | 2.5754 AU - 3.8026 AU |
| Inclination of the orbit plane | 27.5342 ° |
| Length of the ascending node | 201.65583 ° |
| Argument of the periapsis | 155.5015 ° |
| Time of passage of the perihelion | April 3, 2023 |
| Sidereal period | 5.70 a |
| Mean orbital velocity | 16.52 km / s |
| Physical Properties | |
| Medium diameter | 5.430 (± 1.043) km |
| Albedo | 0.055 (± 0.014) |
| Absolute brightness | 15.3 mag |
| history | |
| Explorer | WISE |
| Date of discovery | February 22, 2010 |
| Another name | 2010 DO 53 |
| 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. | |
(249523) Friedan is an asteroid located in the outer main belt that was discovered by the Wide-Field Infrared Survey Explorer ( IAU code C51) on February 22, 2010, an unmanned space telescope owned by NASA that began operations in January 2010.
The mean diameter of the asteroid was roughly calculated to be 5.430 (± 1.043) km and the albedo to be 0.055 (± 0.014). In (249523) Friedan we can therefore assume a dark surface.
The asteroid belongs to the Euphrosyne family, a group of asteroids named after (31) Euphrosyne . The orbit of (249523) Friedan around the Sun is steeply inclined at more than 27 ° to the ecliptic of the solar system , which is typical for members of the Euphrosyne family.
(249523) Friedan was named on February 22, 2016 after the American feminist and publicist Betty Friedan (1921-2006). In the dedication, her bestseller The Feminine Mystique (German: Der Weiblichkeitswahn ) from 1963 was particularly highlighted.
Web links
- (249523) Friedan in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (249523) Friedan in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
- Discovery Circumstances by (249523) Friedan according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)
Individual evidence
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)