astro.wikisort.org - Asteroid

37452 Spirit, provisional designation 4282 P-L, is a dark Hildian asteroid from the outermost region of the asteroid belt, approximately 9 kilometers in diameter.

37452 Spirit

Discovery [1]
Discovered by	C. J. van Houten I. van Houten-G. T. Gehrels
Discovery site	Palomar Obs.
Discovery date	24 September 1960
Designations
MPC designation	(37452) Spirit
Named after	Spirit (rover) (Mars Exploration Rover)[2]
Alternative designations	4282 P-L · 2000 WD183 2000 WO133
Minor planet category	main-belt · (outer)[1] · Hildian[3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	56.28 yr (20,555 days)
Aphelion	4.8206 AU
Perihelion	3.0794 AU
Semi-major axis	3.9500 AU
Eccentricity	0.2204
Orbital period (sidereal)	7.85 yr (2,867 days)
Mean anomaly	55.498°
Mean motion	0° 7m 31.8s / day
Inclination	8.2643°
Longitude of ascending node	352.31°
Argument of perihelion	48.191°
Jupiter MOID	0.8488 AU
Physical characteristics
Dimensions	8.889±0.756 km[4]
Geometric albedo	0.056±0.022[4]
Absolute magnitude (H)	14.2[1]

The asteroid was discovered on 24 September 1960, by Dutch astronomers Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Tom Gehrels at Palomar Observatory, California.[3] It was named after NASA's Spirit Mars rover.[2]

Orbit and classification

Spirit is a member of the Hilda family of asteroids, which stay in a 3:2 orbital resonance with the gas-giant Jupiter, meaning that for every two orbits Jupiter completes, a Hildian asteroid will complete three orbits. As their orbit does not cross the path of any of the planets, it will therefore not be pulled out of orbit by Jupiter's gravitational field and likely remain in a stable orbit for thousands of years.

Spirit orbits the Sun in the outermost main-belt at a distance of 3.1–4.8 AU once every 7 years and 10 months (2,867 days). Its orbit has an eccentricity of 0.22 and an inclination of 8° with respect to the ecliptic.[1]

The body's observation arc begins with its official discovery observation, as no precoveries were taken and no prior identifications were made.[3]

Palomar–Leiden survey

The survey designation "P-L" stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand minor planets.[5]

Physical characteristics

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Spirit measures 8.9 kilometers in diameter and its surface has an albedo of 0.056, which is typical value for carbonaceous C-type asteroids.[4] It has an absolute magnitude of 14.2.[1]

As of 2017, Spirit's rotation period and shape, as well as its spectral type remain unknown.[1][6]

Naming

This minor planet was named by the discoverers for NASA's successful Mars rover Spirit which had been exploring the rocks and minerals in the Martian Gusev crater.[2] The official naming citation was published by the Minor Planet Center on 28 September 2004 (M.P.C. 52770).[7] 39382 Opportunity, also an asteroid of the Hilda family and discovered on the same day, was named after Spirit's twin rover, Opportunity.

References

External links

• 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 (35001)-(40000) – Minor Planet Center
• 37452 Spirit at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 37452 Spirit at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (37452) Spirit

(37452) Spirit ist ein Asteroid des äußeren Hauptgürtels, der am 24. September 1960 von dem niederländischen Astronomenehepaar Cornelis Johannes van Houten und Ingrid van Houten-Groeneveld entdeckt wurde. Die Entdeckung geschah im Rahmen des Palomar-Leiden-Surveys, bei dem von Tom Gehrels mit dem 120-cm-Oschin-Schmidt-Teleskop des Palomar-Observatoriums aufgenommene Feldplatten an der Universität Leiden durchmustert wurden.

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- [en] 37452 Spirit

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[es] (37452) Spirit

El asteroide 37452 Spirit fue descubierto en el 24 de septiembre de 1960 por Ingrid van Houten-Groeneveld, Cornelis Johannes van Houten, y Tom Gehrels. El asteroide fue descubierto examinando imágenes tomadas por telescopios en el Observatorio Palomar. 37452 Spirit es parte de un pequeño grupo de asteroides que forma el Cinturón de Asteroides. 37452 Spirit tiene un diámetro aproximadamente de 4.9 Kilómetros (2.5 millas) y le tarda 7.9 Años dar una vuelta completa alrededor del Sol.

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[ru] (37452) Спирит

(37452) Спирит (англ. Spirit; первоначально — 4282 PL) — небольшой тёмный астероид внешней части главного пояса, входящий в семейство Хильды. Имеет диаметр около 9 км. Открыт в рамках Паломар-лейденской программы в Паломарской обсерватории 24 сентября 1960 года. Первоначально астероид получил обозначение 4282 PL, однако затем его переименовали в (37452) Спирит — в честь марсохода программы Mars Exploration Rover космического агентства NASA — «Спирита»[4].

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