1209 Pumma
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 22 April 1927 |
| Designations | |
| MPC designation | 1209 Pumma |
Named after |
Nickname of niece of astronomer Albrecht Kahrstedt[2][3] |
|
1927 HA · 1950 JQ 1963 UU | |
| main-belt · (outer) [4] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 88.99 yr (32503 days) |
| Aphelion | 3.5803 AU (535.61 Gm) |
| Perihelion | 2.7544 AU (412.05 Gm) |
| 3.1673 AU (473.82 Gm) | |
| Eccentricity | 0.13038 |
| 5.64 yr (2058.9 d) | |
| 232.49° | |
| 0° 10m 29.46s / day | |
| Inclination | 6.9347° |
| 89.867° | |
| 177.39° | |
| Earth MOID | 1.73822 AU (260.034 Gm) |
| Jupiter MOID | 1.50454 AU (225.076 Gm) |
| Jupiter Tisserand parameter | 3.179 |
| Physical characteristics | |
| Dimensions |
21.73±2.15 km[5] 26.986±0.311 km[6] 42.23 km (calculated)[4] |
| 8.5001 h (0.35417 d)[1][7] | |
|
0.215±0.055[5] 0.1397±0.0360[6] 0.057 (assumed)[4] | |
| C [4] | |
| 10.7 | |
|
| |
1209 Pumma, provisional designation 1927 HA, is a carbonaceous asteroid from the outer region of the asteroid belt, about 25 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 22 April 1927.[8]
The C-type asteroid orbits the Sun at a distance of 2.8–3.6 AU once every 5 years and 8 months (2,058 days). Its orbit shows an eccentricity of 0.13 and is tilted by 7 degrees to the plane of the ecliptic. It has a rotation period of 8.5 hours[7] and an albedo of 0.02 and 0.14, respectively, depending on two different data-sets from the Wide-field Infrared Survey Explorer (WISE) and NEOWISE mission.[5][6] The Collaborative Asteroid Lightcurve Link (CALL) assumes a low albedo of 0.06 and calculated the body's diameter to be much larger, about 42 kilometers.[4]
The minor planet was named after the nickname of the niece of Albrecht Kahrstedt (1897–1971), after whom the asteroid 1587 Kahrstedt is named. The name "Pumma" was proposed by Albrecht Kahrstedt himself.[2][3]
References
- 1 2 3 "JPL Small-Body Database Browser: 1209 Pumma (1927 HA)" (2015-10-17 last obs.). Jet Propulsion Laboratory. Retrieved 30 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1209) Pumma. Springer Berlin Heidelberg. p. 101. ISBN 978-3-540-29925-7. Retrieved November 2015.
- 1 2 "Kahrstedt, Albrecht. Astronom, * 24.8.1897 Neiße (Oberschlesien), † 1.11.1971 Berlin (evangelisch)". Deutsche Biographie.de (in German). Retrieved November 2015.
- 1 2 3 4 5 "LCDB Data for (1209) Pumma". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
- 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved November 2015.
- 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015.
- 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1209) Pumma". Geneva Observatory. Retrieved November 2015.
- ↑ "1209 Pumma (1927 HA)". Minor Planet Center. Retrieved November 2015.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 1209 Pumma at the JPL Small-Body Database
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