51 Nemausa

51 Nemausa
51 Nemausa
Discovery
Discovered by A. Laurent
Discovery date January 22, 1858
Designations
Named after Nîmes
Alternate name(s)  
Minor planet
category
Main belt
Epoch December 31, 2006 (JD 2454100.5)
Aphelion 2.523 AU (377.381 Gm)
Perihelion 2.208 AU (330.360 Gm)
Semi-major axis 2.365 AU (353.871 Gm)
Eccentricity 0.066
Orbital period 3.64 a (1328.853 d)
Average orbital speed 19.34 km/s
Mean anomaly 316.668°
Inclination 9.972°
Longitude of ascending node 176.168°
Argument of perihelion 2.820°
Physical characteristics
Dimensions 147.9 km[1]
(170 x 136)[2]
Mass 3.4×1018 kg
Equatorial surface gravity 0.0413 m/s²
Escape velocity 0.0782 km/s
Albedo 0.093[3]
Temperature ~181 K
Spectral type G
Absolute magnitude (H) 7.35

51 Nemausa (play /nɨˈmɔːzə/) is a large asteroid-belt asteroid similar to 1 Ceres in composition. It was discovered by one "A. Laurent", an obscure figure about whom little is known. Laurent made the discovery from the private observatory of Benjamin Valz in Nîmes, France. The house, at 32 rue Nationale in Nîmes, has a plaque commemorating the discovery. With Laurent's permission, Valz named the asteroid after the Celtic god Nemausus, the patron god of Nîmes during Roman times.[4]

Nemausa measures 147.9km in diameter. Lightcurve data suggests that it may have a small moon.[5] It may have a water content of about 14%.[6]

See also

References

  1. ^ "JPL Small-Body Database Browser: 51 Nemausa". 2008-05-09 last obs. http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=51. Retrieved 2008-05-23. 
  2. ^ "Diameters". Astronomical Applications Department of the U.S. Naval Observatory. http://aa.usno.navy.mil/AsAtest/SecG/Diameters.txt. Retrieved 2008-05-23. 
  3. ^ Asteroid Data Sets
  4. ^ Lutz D. Schmadel, Dictionary of Minor Planet Names, p.20.
  5. ^ Other reports of asteroid/TNO companions
  6. ^ A. S. Rivkin (2002). "CALCULATED WATER CONCENTRATIONS ON C CLASS ASTEROIDS" (PDF). Lunar and Planetary Institute. http://www.lpi.usra.edu/meetings/lpsc2002/pdf/1414.pdf. Retrieved 2008-05-22. 

External links


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Look at other dictionaries:

  • Nemausa — Nemausa, ein von Laurent in Nimes am 22. Jan. 1858 entdeckter Asteroid, hat nach dem Gouldschen System das Zeichen die Zeit seines Umlaufs um die Sonne beträgt 3 Jahr 243,6 Tage, seine mittlere Entfernung von der Sonne 49,200,000 Meilen …   Pierer's Universal-Lexikon

  • Nemausa — Asteroid (51) Nemausa Eigenschaften des Orbits (Simulation) Orbittyp Hauptgürtel Große Halbachse 2,3655  …   Deutsch Wikipedia

  • Nemausa (Asteroid) — Asteroid (51) Nemausa Eigenschaften des Orbits (Simulation) Orbittyp Hauptgürtel Große Halbachse 2,3655  …   Deutsch Wikipedia

  • Nemausa — 43° 49′ 05″ N 4° 21′ 31″ E / 43.8181717, 4.3586218 …   Wikipédia en Français

  • (51) Nemausa — Nemausa Descubrimiento Descubridor A. Laurent. Fecha 22 de enero de 1858 Elementos orbitales …   Wikipedia Español

  • (51) Nemausa — Nemausa. Asteroide nº. 51 de la serie, descubierto desde Nimes el 22 de enero de 1858 por A. Laurent. Lista de asteroides …   Enciclopedia Universal

  • némausa — (entrée créée par le supplément) (né mô za) s. f. La 51e planète télescopique, découverte en 1858 par M. Laurent. ÉTYMOLOGIE    Dérivé de Nemausus, nom latin de la ville de Nîmes …   Dictionnaire de la Langue Française d'Émile Littré

  • (51) nemausa — 51 Nemausa pas de photo Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 353,925×106 km (2,366 ua) Aphélie …   Wikipédia en Français

  • 51 Nemausa — (51) Nemausa 51 Nemausa pas de photo Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 353,925×106 km (2,366 ua) Aphélie …   Wikipédia en Français

  • (51) Nemausa — 51 Nemausa Caractéristiques orbitales Époque 18 août 2005 (JJ 2453600.5) Demi grand axe 353,925×106 km (2,366 ua) Aphélie 377,487×106 km (2,523 ua) Périhélie …   Wikipédia en Français

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