(8764) Gallinago
|
Asteroid (8764) Gallinago |
|
|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Asteroid family | Hertha family |
| Major semi-axis | 2.4021 AU |
| eccentricity | 0.1605 |
| Perihelion - aphelion | 2.0166 AU - 2.7876 AU |
| Inclination of the orbit plane | 2.2314 ° |
| Length of the ascending node | 333.2488 ° |
| Argument of the periapsis | 292.9140 ° |
| Sidereal period | 3.72 a |
| Mean orbital velocity | 19.22 km / s |
| Physical Properties | |
| Absolute brightness | 15.3 mag |
| history | |
| Explorer |
Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld , Tom Gehrels |
| Date of discovery | 29th September 1973 |
| Another name | 1109 T-2 , 1976 JJ 4 , 1995 MN |
| 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. | |
(8764) Gallinago is an asteroid of the main inner belt , which was discovered on September 29, 1973 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery was made during the 2nd Trojan survey, during which Tom Gehrels surveyed field plates recorded with the 120 cm Oschin Schmidt telescope of the Palomar observatory at the University of Leiden , 13 years after the start of the Palomar-Leiden- Surveys .
The asteroid belongs to the Polana family (named after (142) Polana ), a subgroup of the Nysa group (named after (44) Nysa ). The Nysa group is also called the Hertha family (after (135) Hertha ). What all members of the families and groups mentioned have in common is that the orbits around the sun are in 2: 1 resonance with those of the planet Mars and are therefore stable over a longer period of time. The timeless (non- osculating ) orbital elements of (8764) Gallinago are almost identical to those of the smaller, if one assumes the absolute brightness of 17.1 compared to 15.3, asteroids (346363) 2008 ST 2 .
(8764) Gallinago is named after the common snipe , a snipe bird , whose scientific name is Gallinago gallinago . At the time the asteroid was named on February 2, 1999, the snipe was on the Dutch Red List of Endangered Species .
Web links
- (8764) Gallinago in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (8764) Gallinago in the Small-Body Database of the Jet Propulsion Laboratory of NASA at the California Institute of Technology (Caltech) in Pasadena , California (English)
Individual evidence
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Springer, Heidelberg 2003, 5th edition, page 664 (English)