4057 Demophon

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Demophon
Discovery
Discovered by Bowell, E.
Discovery site Flagstaff
Discovery date 15 October 1985
Designations
MPC designation (4057) Demophon
1985 TQ
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 11130 days (30.47 yr)
Aphelion 5.8842 AU (880.26 Gm)
Perihelion 4.6403 AU (694.18 Gm)
5.2623 AU (787.23 Gm)
Eccentricity 0.11819
12.07 yr (4409.17 d)
131.848°
0° 4m 53.933s / day
Inclination 2.8730°
24.442°
59.118°
Earth MOID 3.65694 AU (547.070 Gm)
Jupiter MOID 0.0727523 AU (10.88359 Gm)
Jupiter Tisserand parameter 2.983
Physical characteristics
Dimensions 71 km[2]
29.31 h (1.221 d)
10.1

4057 Demophon (1985 TQ) is a Jupiter Trojan discovered on October 15, 1985, by Bowell, E. at Flagstaff.

Photometric observations of this asteroid during 1994 were used to build a light curve showing a rotation period of 29.31 ± 0.07 hours with a brightness variation of 0.23 ± 0.01 magnitude.[2]

References[edit]

  1. ^ "4057 Demophon (1985 TQ)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 14 April 2016. 
  2. ^ a b Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; Hahn, Gerhard; Schober, Hans-Josef; Lahulla, Felix; Delbò, Marco; Lagerkvist, Claes-Ingvar (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal. 141 (5): 170. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170. 

External links[edit]