293 Brasilia
Appearance
Orbital diagram | |
Discovery | |
---|---|
Discovered by | Auguste Charlois |
Discovery date | 20 May 1890 |
Designations | |
(293) Brasilia | |
Pronunciation | /brəˈzɪliə/ |
Named after | Brazil |
A890 KA, 1909 HB | |
main-belt · (outer) Brasilia [1] | |
Orbital characteristics[2] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 106.96 yr (39067 d) |
Aphelion | 3.1657 AU (473.58 Gm) |
Perihelion | 2.55398 AU (382.070 Gm) |
2.85982 AU (427.823 Gm) | |
Eccentricity | 0.10694 |
4.84 yr (1766.5 d) | |
Average orbital speed | 17.61 km/s |
107.972° | |
0° 12m 13.68s / day | |
Inclination | 15.583° |
61.316° | |
86.852° | |
Earth MOID | 1.62263 AU (242.742 Gm) |
Jupiter MOID | 2.02111 AU (302.354 Gm) |
TJupiter | 3.239 |
Physical characteristics | |
Dimensions | 55.11±1.6 km |
8.17 h (0.340 d) | |
0.0615±0.004 | |
9.94 | |
293 Brasilia is a large Main belt asteroid that was discovered by French astronomer Auguste Charlois on 20 May 1890 in Nice. It is the namesake of the Brasilia family, a smaller asteroid family of X-type asteroids in the outer main-belt. However, Brasilia is a suspected interloper in its own family.[1]: 23
Photometric observations of this asteroid at the Leura Observatory in Leura, Australia during 2006 gave a light curve with a period of 8.173 ± 0.002 hours and a brightness variation of 0.20 ± 0.03 in magnitude.[3]
References
- ^ a b Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131.
- ^ Yeomans, Donald K., "293 Brasilia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 11 May 2016.
- ^ Oey, Julian (December 2006), "Lightcurves analysis of 10 asteroids from Leura Observatory", The Minor Planet Bulletin, 33 (4): 96–99, Bibcode:2006MPBu...33...96O.
External links
- 293 Brasilia at AstDyS-2, Asteroids—Dynamic Site
- 293 Brasilia at the JPL Small-Body Database