(11777) Hargrave
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Asteroid (11777) Hargrave |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Asteroid family | Hertha family |
| Major semi-axis | 2.3922 AU |
| eccentricity | 0.2101 |
| Perihelion - aphelion | 1.8895 AU - 2.8949 AU |
| Inclination of the orbit plane | 2.2866 ° |
| Length of the ascending node | 7.7431 ° |
| Argument of the periapsis | 339.0335 ° |
| Sidereal period | 3.70 a |
| Mean orbital velocity | 19.25 km / s |
| Physical Properties | |
| Absolute brightness | 14.3 mag |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | October 16, 1977 |
| Another name | 3526 T-3 , 1991 GH 7 |
| 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. | |
(11777) Hargrave is an asteroid of the inner main belt , which was discovered on October 16, 1977 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery took place during the 3rd Trojan survey, during which Tom Gehrels surveyed field plates recorded by the 120 cm Oschin Schmidt telescope of the Palomar observatory at the University of Leiden , 17 years after the start of the Palomar-Leiden- Surveys .
The asteroid belongs to the Nysa group, a group of asteroids named after (44) Nysa (also called the Hertha family, after (135) Hertha ). The ageless (not osculating ) orbital elements of (11777) Hargrave are almost identical with those of the smaller, if one of the absolute brightness starting from 14.6 compared to 14.3, asteroids (10494) 1986 QO 3 .
(11777) Hargrave was named on May 1, 2003 after the Australian astronomer and aviation pioneer Lawrence Hargrave (1850-1915). As the first person in Australia , Hargrave took off in 1894 with a flying machine heavier than air.
Web links
- (11777) Hargrave in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (11777) Hargrave in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances by (11777) Hargrave 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)