astro.wikisort.org - Asteroid

660 Crescentia is a minor planet orbiting the Sun that was discovered by American astronomer Joel Hastings Metcalf on January 8, 1908. The name may have been inspired by the asteroid's provisional designation 1908 CC. Peter Ting points out that the Rev. Joel Metcalf of Taunton (Massachusetts) discovered six asteroids with unexplained names, though listed in Lutz Schmadel's book. Ting used an on-line planetarium website to help with the location of some of the planets, playing back to the night of discovery. He noticed that there was a crescent moon (33%) low in the western sky and wonders if the Rev. Metcalf could have named the asteroid for the moon. Crescentia would be a very unusual name for a person but not for a phase of the moon.

660 Crescentia

Discovery
Discovered by	Joel Hastings Metcalf
Discovery site	Taunton, Massachusetts
Discovery date	8 January 1908
Designations
MPC designation	(660) Crescentia
Pronunciation	/krəˈsɛnʃə/
Alternative designations	1908 CC
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	106.74 yr (38987 d)
Aphelion	2.8075 AU (420.00 Gm)
Perihelion	2.2581 AU (337.81 Gm)
Semi-major axis	2.5328 AU (378.90 Gm)
Eccentricity	0.10846
Orbital period (sidereal)	4.03 yr (1472.3 d)
Mean anomaly	185.507°
Mean motion	0° 14m 40.272s / day
Inclination	15.205°
Longitude of ascending node	156.981°
Argument of perihelion	106.012°
Physical characteristics
Mean radius	21.12±0.5 km
Synodic rotation period	7.9116 h (0.32965 d)
Geometric albedo	0.2186±0.011
Absolute magnitude (H)	9.14

Crescentia is a member of the dynamic Maria family of asteroids that most likely formed as the result of a collisional breakup of a parent body.[2]

References

External links

• Lightcurve plot of 660 Crescentia, Palmer Divide Observatory, B. D. Warner (2009)
• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• 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
• 660 Crescentia at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 660 Crescentia at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (660) Crescentia

(660) Crescentia ist ein Asteroid des Hauptgürtels, der am 8. Januar 1908 vom US-amerikanischen Astronomen Joel H. Metcalf in Taunton entdeckt wurde.

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- [en] 660 Crescentia

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[es] (660) Crescentia

(660) Crescentia es un asteroide perteneciente al cinturón de asteroides descubierto el 8 de enero de 1908 por Joel Hastings Metcalf desde el observatorio de Taunton, Estados Unidos.

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[ru] (660) Кресцентия

(660) Кресцентия (лат. Crescentia) — астероид главного пояса, который относится к спектральному классу S и входит в состав семейства Марии[1]. Он был открыт 8 января 1908 года американским астрономом Джоэлом Меткалфом в Тонтонской обсерватории. Единой версии о происхождении названия нет: по одной версии, название переводится с латыни как «растущая» (связано, вероятно, с растущей Луной); по другой версии, взято в честь героини германского эпоса XII века «История о милосердной королеве Кресцентии» (нем. Historic von der geduldigen Königin Crescentia)[2].

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