254 Augusta

Last updated

254 Augusta
000254-asteroid shape model (254) Augusta.png
Modelled shape of Augusta from its lightcurve
Discovery [1]
Discovered by J. Palisa
Discovery site Vienna Obs.
Discovery date31 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

    1. 1 2 3 "JPL Small-Body Database Browser: 254 Augusta" (2015-03-28 last obs.). Jet Propulsion Laboratory . Retrieved 12 May 2016.
    2. Noah Webster (1884) A Practical Dictionary of the English Language
    3. 1 2 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.