254 Augusta
![]() Modelled shape of Augusta from its lightcurve | |
Discovery [1] | |
---|---|
Discovered by | J. Palisa |
Discovery site | Vienna Obs. |
Discovery date | 31 March 1886 |
Designations | |
(254) Augusta | |
Pronunciation | /ɒˈɡʌstə/[2] |
Named after | Auguste von Littrow [3] |
A886 FA | |
Augusta · main-belt | |
Orbital characteristics [1] | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 130.04 yr (47498 d) |
Aphelion | 2.4613 AU (368.21 Gm) |
Perihelion | 1.9281 AU (288.44 Gm) |
2.1947 AU (328.32 Gm) | |
Eccentricity | 0.12147 |
3.25 yr (1187.5 d) | |
Average orbital speed | 20.1 km/s[citation needed] |
340.92° | |
0° 18m 11.34s / day | |
Inclination | 4.5131° |
28.473° | |
233.14° | |
Earth MOID | 0.916708 AU (137.1376 Gm) |
Jupiter MOID | 2.58938 AU (387.366 Gm) |
TJupiter | 3.656 |
Physical characteristics | |
Dimensions | 12.11±1.1 km |
5.8949 h (0.24562 d) | |
0.1695±0.036 | |
B–V = 0.845 U–B = 0.505 Tholen = S | |
12.13 | |
254 Augusta is a main-belt asteroid, discovered on 31 March 1886 by astronomer Johann Palisa at Vienna Observatory, Austria. The stony S-type asteroid measures about 12 kilometers in diameter.[1] It is the first-numbered member of the Augusta family, after which the small Asteroid family and subgroup of the main-belt has been named. Augusta was named after the German–Austrian writer Auguste von Littrow (1819–1890), widow of astronomer Carl Ludwig von Littrow, who was a former director of the Vienna Observatory.[3]
References
[edit]- ^ a b c "JPL Small-Body Database Browser: 254 Augusta" (2015-03-28 last obs.). Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ Noah Webster (1884) A Practical Dictionary of the English Language
- ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (254) Augusta. Springer Berlin Heidelberg. p. 37. doi:10.1007/978-3-540-29925-7_255. ISBN 978-3-540-29925-7.
External links
[edit]- "254 Augusta". JPL Small-Body Database. Jet Propulsion Laboratory. SPK-ID: 2000254.
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- 254 Augusta at AstDyS-2, Asteroids—Dynamic Site
- 254 Augusta at the JPL Small-Body Database