1749 Telamon

From Wikipedia, the free encyclopedia

Jump to: navigation, search
1749 Telamon
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 23 September 1949
Designations
MPC designation (1749) Telamon
Pronunciation /ˈtɛləmɒn/ TEL-ə-mon
Named after
Telamon
(Greek mythology)[2]
1949 SB · 1941 BP
1966 CN
Jupiter trojan[3]
(Greek camp)[4]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 66.71 yr (24,365 days)
Aphelion 5.7008 AU
Perihelion 4.5985 AU
5.1497 AU
Eccentricity 0.1070
11.69 yr (4,268 days)
155.67°
0° 5m 3.48s / day
Inclination 6.0933°
340.90°
113.21°
Jupiter MOID 0.3164 AU
Jupiter Tisserand parameter 2.9770
Physical characteristics
Dimensions 64.898±0.666 km[5][6]
69.14±4.57 km[7]
80.84 km (derived)[8]
11.187±0.008 h[9]
16.975±0.001 h[10]
0.0428 (derived)[8]
0.073±0.011[5][6]
0.078±0.011[7]
D[11] · C[8]
9.20[7] · 9.4[5] · 9.5[1][8] · 9.64±0.39[11]

1749 Telamon, provisional designation 1949 SB, is a dark Jupiter Trojan from the Greek camp, approximately 70 kilometers in diameter.. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 23 September 1949.[3]

The C-type Trojan asteroid shares the orbit of the gas giant Jupiter in the Greek Camp in the L4 Lagrangian point of the Sun–Jupiter system. It therefore orbits the Sun at a distance of 4.6–5.7 AU once every 11 years and 8 months (4,268 days). Its orbit has an eccentricity of 0.11 and an inclination of 6° with respect to the ecliptic.[1] It has an albedo of 0.06–0.07, based on observations by the Akari and Wide-field Infrared Survey Explorer satellites.[7][5][6]

Photometric observations of the body from 1995 were used to build a light-curve rendering a rotation period of 11.2 hours with a brightness variation of 0.1±0.01 in magnitude,[9] while another observation in 2010 rendered a period of 16.9 hours.[10]

The asteroid was named by the discoverer after Telamon, from Greek mythology, who was an argonaut searching for the Golden Fleece, and father of Ajax and Teucer, after whom the minor planets 1404 Ajax and 2797 Teucer are named. Telamon banished his son Teucer (as he had been banished by his own father) when he returned home from the Trojan war without the remains of his brother.[2] Naming citation was published before November 1977 (M.P.C. 3023).[12]

References[edit]

  1. ^ a b c d "JPL Small-Body Database Browser: 1749 Telamon (1949 SB)" (2016-06-08 last obs.). Jet Propulsion Laboratory. Retrieved 20 December 2016. 
  2. ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1749) Telamon. Springer Berlin Heidelberg. p. 139. ISBN 978-3-540-00238-3. Retrieved 20 December 2016. 
  3. ^ a b "1749 Telamon (1949 SB)". Minor Planet Center. Retrieved 20 December 2016. 
  4. ^ "List of Jupiter Trojans". Minor Planet Center. 20 June 2016. Retrieved 20 December 2016. 
  5. ^ a b c d Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 20 December 2016. 
  6. ^ a b c Grav, T.; Mainzer, A. K.; Bauer, J. M.; Masiero, J. R.; Nugent, C. R. (November 2012). "WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy". The Astrophysical Journal. 759 (1): 10. arXiv:1209.1549Freely accessible. Bibcode:2012ApJ...759...49G. doi:10.1088/0004-637X/759/1/49. Retrieved 20 December 2016. 
  7. ^ 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" (PDF). Publications of the Astronomical Society of Japan. 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved 20 December 2016. 
  8. ^ a b c d "LCDB Data for (1749) Telamon". Asteroid Lightcurve Database (LCDB). Retrieved 20 December 2016. 
  9. ^ a b Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; et al. (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal. 141 (5): 32. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170. Retrieved 20 December 2016. 
  10. ^ a b French, Linda M.; Stephens, Robert D.; Lederer, Susan M.; Coley, Daniel R.; Rohl, Derrick A. (April 2011). "Preliminary Results from a Study of Trojan Asteroids". The Minor Planet Bulletin. 38 (2): 116–120. Bibcode:2011MPBu...38..116F. ISSN 1052-8091. Retrieved 20 December 2016. 
  11. ^ a b 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 20 December 2016. 
  12. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 20 December 2016. 

External links[edit]