1173 Anchises

1173 Anchises
Discovery
Discovered by	Reinmuth, K.
Discovery site	Heidelberg
Discovery date	17 October 1930
Designations
MPC designation	1173
Named after	Anchises
Alternative designations	1930 UB
Minor planet category	Jupiter Trojan
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	85.48 yr (31221 days)
Aphelion	6.02443 AU (901.242 Gm) (Q)
Perihelion	4.57388 AU (684.243 Gm) (q)
Semi-major axis	5.29916 AU (792.743 Gm) (a)
Eccentricity	0.136867 (e)
Orbital period (sidereal)	12.20 yr (4455.62 d)
Mean anomaly	135.591° (M)
Mean motion	0° 4m 50.868s / day (n)
Inclination	6.91719° (i)
Longitude of ascending node	283.902° (Ω)
Argument of perihelion	40.7907° (ω)
Earth MOID	3.565 AU (533.3 Gm)
Jupiter MOID	0.468635 AU (70.1068 Gm)
TJupiter	2.967
Physical characteristics
Dimensions	126 km
Mean radius	63.135±5.35 km
Synodic rotation period	11.60 h (0.483 d)
Sidereal rotation period	11.60 h
Geometric albedo	0.0308±0.006
Spectral type	P
Apparent magnitude	14.91 to 17.45
Absolute magnitude (H)	8.89

1173 Anchises, provisionally designated "1930 UB", is a Jupiter Trojan discovered on October 17, 1930, by Karl Wilhelm Reinmuth at Heidelberg.^[1]

Overview

Up to the year 2200, its closest approach to any major planet will be on February 3, 2120, when it will still be 2.669 AU (399,300,000 km; 248,100,000 mi) from Jupiter.^[2]

With an IRAS diameter of 126 km,^[1] Anchises is about the 7th largest Jupiter Trojan known.^[3] It is a dark P-type asteroid.^[1]

The largest Jupiter trojans
Trojan	Diameter (km)
624 Hektor	225
617 Patroclus	140
911 Agamemnon	131
588 Achilles	130
3451 Mentor	126
3317 Paris	119
1867 Deiphobus	118
1172 Äneas	118
1437 Diomedes	118
1143 Odysseus	115
Source: JPL Small-Body Database, NEOWISE data

References

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ "JPL Small-Body Database Browser: 1173 Anchises (1930 UB)" (2011-11-17 last obs). Jet Propulsion Laboratory. Retrieved 1 May 2016.
^ Horizons output. "Observer Table for Asteroid 1173 Anchises (1930 UB)". Retrieved 2012-04-04. (Observer Location:@Jupiter)
^ "JPL Small-Body Database Search Engine: orbital class (TJN) and diameter > 50 (km)". JPL's Solar System Dynamics Group. Retrieved 2012-03-28.

External links

Orbital simulation from JPL (Java) / Ephemeris
1173 Anchises at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

This Jupiter-trojan-related article is a stub. You can help Wikipedia by expanding it.

[jpldata-1] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ "JPL Small-Body Database Browser: 1173 Anchises (1930 UB)" (2011-11-17 last obs). Jet Propulsion Laboratory. Retrieved 1 May 2016.

[horizons-2] Horizons output. "Observer Table for Asteroid 1173 Anchises (1930 UB)". Retrieved 2012-04-04. (Observer Location:@Jupiter)

[large-trojan-3] "JPL Small-Body Database Search Engine: orbital class (TJN) and diameter > 50 (km)". JPL's Solar System Dynamics Group. Retrieved 2012-03-28.

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