19139 Apian
| Discovery Perihelion | 2.3841 AU | |
|---|---|---|
| 2.5832 AU | ||
| Eccentricity | 0.0771 | |
| 4.15 yr (1,516 days) | ||
| 105.06° | ||
| 0° 14m 14.64s / day | ||
| Inclination | 8.0241° | |
| 48.222° | ||
| 336.68° | ||
| Physical characteristics | ||
| Dimensions | 5.643±0.089 km[5] | |
| 0.265±0.039[5] | ||
| 13.5[1] | ||
19139 Apian (
provisional designation 1989 GJ8) is a bright background asteroid from the central regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 6 April 1989, by German astronomer Freimut Börngen at the Karl Schwarzschild Observatory in Tautenburg, Eastern Germany. The asteroid was named for medieval German humanist Petrus Apianus.[2][3]
Orbit and classification
Apian is a non-
semi-major axis of 2.58 AU). Its orbit has an eccentricity of 0.08 and an inclination of 8° with respect to the ecliptic.[1]
The body's observation arc begins with a precovery published in the Digitized Sky Survey and taken at Palomar Observatory in February 1989, approximately 2 months prior to its official discovery observation at Tautenburg.[3]
Physical characteristics
The asteroid's
spectral type
is unknown. Based on its albedo (see below), it is a stony rather than carbonaceous asteroid.
Rotation period
As of 2018, no rotational
Diameter and albedo
According to the survey carried out by the
albedo of 0.265.[5]
Naming
This
sky atlas Astronomicum Caesareum published in 1540. The lunar crater Apianus was also named in his honor.[2]
The approved naming citation was published by the
M.P.C. 47168).[7]
References
- ^ a b c d e "JPL Small-Body Database Browser: 19139 Apian (1989 GJ8)" (2017-03-17 last obs.). Jet Propulsion Laboratory. Retrieved 3 January 2018.
- ^ ISBN 978-3-540-00238-3.
- ^ a b c "19139 Apian (1989 GJ8)". Minor Planet Center. Retrieved 3 January 2018.
- ^ a b "Asteroid 19139 Apian – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. Retrieved 29 October 2019.
- ^ . Retrieved 3 January 2018.
- ^ "LCDB Data for (19139) Apian". Asteroid Lightcurve Database (LCDB). Retrieved 3 January 2018.
- ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 3 January 2018.
External links
- Asteroid Lightcurve Database (LCDB), query form (info Archived 21 July 2011 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (15001)-(20000) – Minor Planet Center
- 19139 Apian at AstDyS-2, Asteroids—Dynamic Site
- 19139 Apian at the JPL Small-Body Database
