1181 Lilith
| Discovery [1] | |
|---|---|
| Discovered by | B. Jekhovsky |
| Discovery site | Algiers Obs. |
| Discovery date | 11 February 1927 |
| Designations | |
| MPC designation | 1181 Lilith |
Named after |
Lili Boulanger (French composer)[2] |
|
1927 CQ · 1925 QF 1943 WC · 1953 CA 1964 PG · A914 BA | |
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 84.66 yr (30,922 days) |
| Aphelion | 3.1862 AU |
| Perihelion | 2.1383 AU |
| 2.6623 AU | |
| Eccentricity | 0.1967 |
| 4.34 yr (1,587 days) | |
| 216.49° | |
| 0° 13m 36.48s / day | |
| Inclination | 5.6036° |
| 260.71° | |
| 156.21° | |
| Physical characteristics | |
| Dimensions |
22.133±0.254 km[4] 24.18 km (calculated)[3] |
| 15.04±0.01 h[5] | |
|
0.0910±0.0157[4] 0.10 (assumed)[3] | |
| SMASS = X[1] · X[3] | |
|
11.2[1][3] 11.5[4] 11.56±0.52[6] | |
|
| |
1181 Lilith, provisional designation 1927 CQ, is a dark asteroid from the middle region of the asteroid belt, about 23 kilometers in diameter. It was discovered by Russian–French astronomer Benjamin Jekhowsky at Algiers Observatory in Algeria, Northern Africa, on 11 February 1927.[7]
The X-type asteroid orbits the Sun at a distance of 2.1–3.2 AU once every 4 years and 4 months (1,587 days). Its orbit has an eccentricity of 0.20 and an inclination of 6° with respect to the ecliptic.[1]
In 2014, a rotational light-curve was obtained by Italian astronomer Andrea Ferrero at the Bigmuskie Observatory (B88) in Mombercelli, Italy. The photometric observations rendered a period of 15.04±0.01 hours with a brightness amplitude of 0.11 in magnitude (U=2).[5] According to preliminary results from the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, the asteroid has a low albedo of 0.09 and a diameter of 22.1 kilometers,[4] while the Collaborative Asteroid Lightcurve Link (CALL) assumes an albedo of 0.10 and calculates a diameter of 24.2 kilometers.[1]
The minor planet was named by the discoverer for French composer Marie-Juliette Olga Lili Boulanger (1893–1918), younger sister of the noted conductor and composer Nadia Boulanger. Her byname "Lili" originates from Lilith, Adam's first wife in Jewish mythology.[2]
References
- 1 2 3 4 5 6 "JPL Small-Body Database Browser: 1181 Lilith (1927 CQ)" (2015-08-16 last obs.). Jet Propulsion Laboratory. Retrieved March 2016.
- 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1181) Lilith. Springer Berlin Heidelberg. p. 99. ISBN 978-3-540-00238-3. Retrieved March 2016.
- 1 2 3 4 5 "LCDB Data for (1181) Lilith". Asteroid Lightcurve Database (LCDB). Retrieved March 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 March 2016.
- 1 2 Ferrero, Andrea (July 2014). "Period Determination of Six Main Belt Asteroids". The Minor Planet Bulletin 41 (3): 184–185. Bibcode:2014MPBu...41..184F. ISSN 1052-8091. Retrieved March 2016.
- ↑ 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 March 2016.
- ↑ "1181 Lilith (1927 CQ)". Minor Planet Center. Retrieved March 2016.
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
- 1181 Lilith at the JPL Small-Body Database
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