774 Armor

774 Armor

Discovery
Discovered by	C. le Morvan
Discovery site	Paris
Discovery date	19 December 1913
Designations
MPC designation	(774) Armor
Alternative designations	1913 TW
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	107.33 yr (39203 d)
Aphelion	3.5625 AU (532.94 Gm)
Perihelion	2.5318 AU (378.75 Gm)
Semi-major axis	3.0472 AU (455.85 Gm)
Eccentricity	0.16914
Orbital period	5.32 yr (1942.9 d)
Mean anomaly	240.634°
Mean motion	0° 11^m 7.044^s / day
Inclination	5.5589°
Longitude of ascending node	250.253°
Argument of perihelion	28.478°
Earth MOID	1.51688 AU (226.922 Gm)
Jupiter MOID	1.56651 AU (234.347 Gm)
TJupiter	3.209
Physical characteristics
Mean radius	25.185±0.95 km
Rotation period	25.107 h (1.0461 d)
Geometric albedo	0.2529±0.020
Absolute magnitude (H)	8.8

774 Armor is a minor planet orbiting the Sun.

References

1. "774 Armor (1913 TW)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.

External links

• Lightcurve plot of 774 Armor, Palmer Divide Observatory, B. D. Warner (2006)
• 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
• 774 Armor at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 774 Armor at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters