1049 Gotho
Discovery[1] | |
---|---|
Discovered by | K. Reinmuth |
Discovery site | Heidelberg Obs. |
Discovery date | 14 September 1925 |
Designations | |
(1049) Gotho | |
Named after | unknown[2] |
1925 RB · A906 DD | |
Minor planet category | main-belt · (outer)[3] |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 91.64 yr (33,470 days) |
Aphelion | 3.5133 AU |
Perihelion | 2.6726 AU |
3.0930 AU | |
Eccentricity | 0.1359 |
5.44 yr (1,987 days) | |
295.00° | |
0° 10m 52.32s / day | |
Inclination | 15.110° |
342.86° | |
41.244° | |
Physical characteristics | |
Dimensions | 51.05 km (derived)[3] 53.56±16.68 km[4] 53.84±19.48 km[5] 54.77±0.76 km[6] 56.296±0.204 km[7] 63.874±0.177 km[8] |
8.470±0.007 h[9] | |
0.0069±0.0005[8] 0.008±0.001[7] 0.03±0.03[4] 0.04±0.06[5] 0.045±0.001[6] 0.0469 (derived)[3] | |
C[3] | |
Absolute magnitude (H) | 10.30[6] · 10.4[1][3][4] · 10.42[5] · 12.0[8] |
1049 Gotho, provisional designation 1925 RB, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 53 kilometers in diameter. It was discovered on 14 September 1925, by German astronomer Karl Reinmuth at Heidelberg Observatory in southwest Germany.[10] Although the name of the asteroid is a masculine German name, it is not known to refer to a particular individual.[2]
Orbit and classification[]
Gotho orbits the Sun in the outer main-belt at a distance of 2.7–3.5 AU once every 5 years and 5 months (1,987 days). Its orbit has an eccentricity of 0.14 and an inclination of 15° with respect to the ecliptic.[1] First identified as A906 DD at Heidelberg in February 1906, the body's observation arc begins much later at Johannesburg in 1952, or 27 years after its official discovery observation.[10]
Physical characteristics[]
Gotho has been characterized as a C-type asteroid.[3]
Lightcurves[]
In April 2010, a rotational lightcurve of Gotho was obtained by astronomer Kenda Albers at the Oakley Southern Sky Observatory, Australia. Lightcurve analysis gave a rotation period of 8.470 hours with a brightness variation of 0.17 magnitude (U=3-).[9]
Diameter and albedo[]
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Gotho measures between 53.56 and 56.296 kilometers in diameter and its surface has an albedo between 0.008 and 0.045 (without preliminary results).[4][5][6][7] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.0469 and a diameter of 51.05 kilometers using an absolute magnitude of 10.4.[3]
Naming[]
For this minor planet, any reference of its name to a person or occurrence is unknown.[2]
Unknown meaning[]
Among the many thousands of named minor planets, Gotho is one of 120 asteroids, for which no official naming citation has been published. All of these low-numbered asteroids have numbers between 164 Eva and 1514 Ricouxa and were discovered between 1876 and the 1930s, predominantly by astronomers Auguste Charlois, Johann Palisa, Max Wolf and Karl Reinmuth (also see category).[11]
References[]
- ^ Jump up to: a b c d "JPL Small-Body Database Browser: 1049 Gotho (1925 RB)" (2017-05-04 last obs.). Jet Propulsion Laboratory. Retrieved 26 July 2017.
- ^ Jump up to: a b c Schmadel, Lutz D. (2007). "(1049) Gotho". Dictionary of Minor Planet Names – (1049) Gotho. Springer Berlin Heidelberg. p. 90. doi:10.1007/978-3-540-29925-7_1050. ISBN 978-3-540-00238-3.
- ^ Jump up to: a b c d e f g "LCDB Data for (1049) Gotho". Asteroid Lightcurve Database (LCDB). Retrieved 12 February 2017.
- ^ Jump up to: a b c d Nugent, C. R.; Mainzer, A.; Masiero, J.; Bauer, J.; Cutri, R. M.; Grav, T.; et al. (December 2015). "NEOWISE Reactivation Mission Year One: Preliminary Asteroid Diameters and Albedos". The Astrophysical Journal. 814 (2): 13. arXiv:1509.02522. Bibcode:2015ApJ...814..117N. doi:10.1088/0004-637X/814/2/117. Retrieved 12 February 2017.
- ^ Jump up to: a b c d Nugent, C. R.; Mainzer, A.; Bauer, J.; Cutri, R. M.; Kramer, E. A.; Grav, T.; et al. (September 2016). "NEOWISE Reactivation Mission Year Two: Asteroid Diameters and Albedos". The Astronomical Journal. 152 (3): 12. arXiv:1606.08923. Bibcode:2016AJ....152...63N. doi:10.3847/0004-6256/152/3/63. Retrieved 12 February 2017.
- ^ Jump up to: a b c d Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. (online, AcuA catalog p. 153)
- ^ Jump up to: a b c Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 12 February 2017.
- ^ Jump up to: a b c 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.
- ^ Jump up to: a b Albers, Kenda; Kragh, Katherine; Monnier, Adam; Pligge, Zachary; Stolze, Kellen; West, Josh; et al. (October 2010). "Asteroid Lightcurve Analysis at the Oakley Southern Sky Observatory: 2009 October thru 2010 April". The Minor Planet Bulletin. 37 (4): 152–158. Bibcode:2010MPBu...37..152A. ISSN 1052-8091. Retrieved 12 February 2017.
- ^ Jump up to: a b "1049 Gotho (1925 RB)". Minor Planet Center. Retrieved 12 February 2017.
- ^ Schmadel, Lutz D. (2007). "Appendix 11 – Minor Planet Names with Unknown Meaning". Dictionary of Minor Planet Names – Fifth Revised and Enlarged revision. Springer Berlin Heidelberg. pp. 927–929. ISBN 978-3-540-00238-3.
External links[]
- 1049-Gotho-1925-RB, universetoday.com
- When was the comet or asteroid 1049 Gotho (1925 RB) (Gotho) first and last observed, universetoday.com
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 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 (1)-(5000) – Minor Planet Center
- 1049 Gotho at AstDyS-2, Asteroids—Dynamic Site
- 1049 Gotho at the JPL Small-Body Database
- Minor planet object articles (numbered)
- Background asteroids
- Discoveries by Karl Wilhelm Reinmuth
- Minor planets with names of unknown origin
- Named minor planets
- Astronomical objects discovered in 1925