astro.wikisort.org - Asteroid

Pompeja (minor planet designation: 203 Pompeja) is a quite large main-belt asteroid. It was discovered by C. H. F. Peters on September 25, 1879, in Clinton, New York, and named after Pompeii, the Roman town destroyed in volcanic eruption in AD 79. This asteroid is orbiting the Sun at a distance of 2.74 AU with an eccentricity (ovalness) of 0.06 and a period of 4.53 yr. The orbital plane is tilted at an angle of 3.2° to the plane of the ecliptic.[2]

203 Pompeja

Discovery
Discovered by	C. H. F. Peters
Discovery date	25 September 1879
Designations
MPC designation	(203) Pompeja
Pronunciation	/pɒmˈpiːə/[1]
Named after	Pompeii
Alternative designations	A879 SA, 1895 EA
Minor planet category	Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	136.43 yr (49,832 d)
Aphelion	2.897 AU (433.4 Gm)
Perihelion	2.577 AU (385.5 Gm)
Semi-major axis	2.737 AU (409.4 Gm)
Eccentricity	0.058490
Orbital period (sidereal)	4.53 yr (1,653.6 d)
Average orbital speed	18.01 km/s
Mean anomaly	47.6383°
Mean motion	0° 13m 3.72s / day
Inclination	3.1780°
Longitude of ascending node	347.916°
Argument of perihelion	57.060°
Physical characteristics
Dimensions	116.25±2.5 km
Synodic rotation period	24.052 h (1.0022 d)[3][2]
Geometric albedo	0.0410±0.002
Spectral type	DCX:
Absolute magnitude (H)	8.76

Based upon photometric observations taken during 2011, it has a synodic rotation period of 24.052 ± 0.001 h, with a peak-to-peak amplitude of 0.10 ± 0.01 in magnitude. Because the rotation period nearly matches that of the Earth, it required coordinated observations from multiple observatories at widely spaced latitudes to produce a complete light curve.[3] As discovered in 2021, the asteroid has a very red color due to tholins on its surface, similar to trans-Neptunian objects. It is therefore thought to have formed in the outer Solar System despite its current orbit within the asteroid belt.[4]

References

External links

• The Asteroid Orbital Elements Database
• Minor Planet Discovery Circumstances
• Asteroid Lightcurve Parameters
• Asteroid Albedo Compilation
• 203 Pompeja at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 203 Pompeja at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (203) Pompeja

(203) Pompeja ist ein Asteroid des Asteroiden-Hauptgürtels, der am 25. September 1879 von Christian Heinrich Friedrich Peters entdeckt wurde. Der Asteroid wurde nach der römischen Stadt Pompeji benannt, die bei der Explosion des Vesuv 79 n. Chr. zerstört wurde.

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- [en] 203 Pompeja

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[es] (203) Pompeja

(203) Pompeja es un asteroide perteneciente al cinturón de asteroides descubierto el 25 de septiembre de 1879 por Christian Heinrich Friedrich Peters desde el observatorio Litchfield de Clinton, Estados Unidos. Está nombrado por Pompeya, antigua ciudad romana, con motivo de la proximidad del descubrimiento con el dieciocho centenario de su destrucción por el Vesubio.[2]

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[ru] (203) Помпея

(203) Помпея (лат. Pompeja) — довольно крупный астероид главного пояса. Он был обнаружен 25 сентября 1879 года германо-американским астрономом К. Г. Ф. Петерсом в обсерватории Клинтона, США и назван в честь древнеримского города Помпеи, уничтоженного 24 августа 79 года в результате извержения вулкана Везувий[1].

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