1823 Gliese
| Discovery [1] | |
|---|---|
| Discovered by | K. Reinmuth |
| Discovery site | Heidelberg Obs. |
| Discovery date | 4 September 1951 |
| Designations | |
| MPC designation | 1823 Gliese |
Named after |
Wilhelm Gliese (astronomer) [2] |
|
1951 RD · 1944 MC 1948 VH · 1950 BL 1950 DR · 1950 EF 1954 NE · 1970 EU2 1971 SE1 | |
| main-belt · Flora [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 67.45 yr (24,635 days) |
| Aphelion | 2.528 AU |
| Perihelion | 1.9239 AU |
| 2.226 AU | |
| Eccentricity | 0.1357 |
| 3.32 yr (1,213 days) | |
| 278.9539° | |
| 0° 17m 48.48s / day | |
| Inclination | 2.8927° |
| 310.0404° | |
| 296.7143° | |
| Earth MOID | 0.910683 AU (136.2362 Gm) |
| Jupiter MOID | 2.49713 AU (373.565 Gm) |
| Jupiter Tisserand parameter | 3.632 |
| Physical characteristics | |
| Dimensions |
9.544±0.025 km[4] 8.19 km (calculated)[3] |
|
4.4864±0.0006 h[lower-alpha 1] 4.488±0.003 h[5] | |
|
0.1349±0.0152[4] 0.24 (assumed)[3] | |
| S [3][6] | |
|
12.6[1][3] 12.55±0.49[6] 12.9[4] | |
|
| |
1823 Gliese, provisional designation 1951 RD, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 9 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory in southern Germany on 4 September 1951.[7]
The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 1.9–2.5 AU once every 3 years and 4 months (1,213 days). Its orbit has an eccentricity of 0.14 and an inclination of 3° with respect to the ecliptic.[1] The first used precovery was taken at the discovering observatory in 1950, extending the asteroid's observation arc by one year prior to its discovery. However, the first unused observations date back to 1944 at Johannesburg Observatory.[7]
A rotational light-curve of this asteroid was obtained from photometric observations made by Czech astronomer Petr Pravec at the Ondřejov Observatory in August 2014. The light-curve gave a well-defined rotation period of 4.4864±0.0006 hours with a brightness variation of 0.27 in magnitude (U=3).[lower-alpha 1] One month later, in September 2014, a second light-curve by American astronomer Brian Warner at the U.S. Palmer Divide Observatory, Colorado, gave a concurring period of 4.488±0.003 hours with an amplitude of 0.23 in magnitude (U=3).[5]
According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid measures 9.5 kilometers in diameter and its surface has an albedo of 0.13,[4] while the Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 – derived from 8 Flora, the largest member and namesake of this asteroid's orbital family – and calculates a diameter of 8.2 kilometers, based on an absolute magnitude of 12.6.[3]
The asteroid was named after German astronomer Wilhelm Gliese (1915–1993) at the Astronomisches Rechen-Institut. Gliese is widely known for having compiled about 1,000 stars located within 25 parsecs of Earth into the Gliese Catalogue of Nearby Stars.[2] Naming citation was published before November 1977 (M.P.C. 4156).[8] A large number of Exoplanets derive their names form this star catalogue.
References
- 1 2 Pravec, P.; Wolf, M.; Sarounova, L. (2014) web publication. Summary figures listed at the Light Curve Data Base – (1823) Gliese
- 1 2 3 4 "JPL Small-Body Database Browser: 1823 Gliese (1951 RD)" (2016-04-17 last obs.). Jet Propulsion Laboratory. Retrieved 16 May 2016.
- 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1823) Gliese. Springer Berlin Heidelberg. p. 146. ISBN 978-3-540-00238-3. Retrieved 16 May 2016.
- 1 2 3 4 5 6 "LCDB Data for (1823) Gliese". Asteroid Lightcurve Database (LCDB). Retrieved 16 May 2016.
- 1 2 3 4 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 16 May 2016. - 1 2 Warner, Brian D. (January 2015). "Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2014 June-October". The Minor Planet Bulletin. 42 (1): 54–60. Bibcode:2015MPBu...42...54W. ISSN 1052-8091. Retrieved 4 November 2015.
- 1 2 Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 16 May 2016.
- 1 2 "1823 Gliese (1951 RD)". Minor Planet Center. Retrieved 16 May 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 16 May 2016.
External links
- Gliese Catalogue of Nearby Stars, Heidelberg University
- The Palmer Divide Observatory: Tour given by Brian Warner on YouTube (time 4:03 min.)
- 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
- 1823 Gliese at the JPL Small-Body Database
