astro.wikisort.org - Asteroid

638 Moira, also known as A907 JG, is a minor planet orbiting the Sun. First observed in 1906, 638 Moira was discovered to be an orbital body in 1907 by Joel Hastings Metcalf in Taunton, England. 638 Moira is a little over 59.5 km across and rotates once every 10 hours. Its farthest point from the sun is a little over 3au during its 4.5 year orbit, and it is classed as an L-type asteroid (SMASSII).

638 Moira

Discovery
Discovered by	Joel Hastings Metcalf
Discovery site	Taunton, Massachusetts
Discovery date	5 May 1907
Designations
MPC designation	(638) Moira
Pronunciation	/ˈmɔɪrə/
Named after	Moirae
Alternative designations	1907 ZQ
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	110.22 yr (40257 d)
Aphelion	3.1701 AU (474.24 Gm)
Perihelion	2.3005 AU (344.15 Gm)
Semi-major axis	2.7353 AU (409.20 Gm)
Eccentricity	0.15896
Orbital period (sidereal)	4.52 yr (1652.4 d)
Mean anomaly	54.7967°
Mean motion	0° 13m 4.332s / day
Inclination	7.7123°
Longitude of ascending node	103.208°
Argument of perihelion	128.586°
Physical characteristics
Mean radius	32.72±0.7 km
Synodic rotation period	9.875 h (0.4115 d)
Geometric albedo	0.060
Absolute magnitude (H)	10.0

References

External links

• 638 Moira at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 638 Moira at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (638) Moira

(638) Moira ist ein Asteroid des Hauptgürtels, der am 5. Mai 1907 vom US-amerikanischen Astronomen Joel H. Metcalf in Taunton entdeckt wurde.

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- [en] 638 Moira

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[es] (638) Moira

(638) Moira es un asteroide que forma parte del cinturón de asteroides y fue descubierto el 5 de mayo de 1907 por Joel Hastings Metcalf desde el observatorio de Taunton, Estados Unidos.

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[ru] (638) Мойра

(638) Мойра (др.-греч. Μοῖραι) — астероид главного пояса, который был открыт 5 мая 1907 года американским астрономом Джоэлом Меткалфом в американском городе Таунтон (штат Массачусетс, США) и назван в честь Мойры, древнегреческих богинь судьбы[1].

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