astro.wikisort.org - Asteroid

4822 Karge, provisional designation 1986 TC₁, is a bright asteroid from the inner regions of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 4 October 1986, by American astronomer Edward Bowell at the Anderson Mesa Station of the Lowell Observatory in Flagstaff, Arizona.[4] The asteroid was later named after American physics teacher Orville Karge.[2]

4822 Karge

Discovery [1]
Discovered by	E. Bowell
Discovery site	Lowell Obs.
Discovery date	4 October 1986
Designations
MPC designation	(4822) Karge
Named after	Orville B. Karge (physics teacher)[2]
Alternative designations	1986 TC1 · 1979 QM5 1979 QO
Minor planet category	main-belt · inner
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	45.67 yr (16,681 days)
Aphelion	2.6713 AU
Perihelion	1.8335 AU
Semi-major axis	2.2524 AU
Eccentricity	0.1860
Orbital period (sidereal)	3.38 yr (1,235 days)
Mean anomaly	31.263°
Mean motion	0° 17m 29.76s / day
Inclination	4.0502°
Longitude of ascending node	141.41°
Argument of perihelion	264.30°
Physical characteristics
Dimensions	4.335±0.194 km[3]
Geometric albedo	0.341±0.056[3]
Absolute magnitude (H)	13.7[1]

Orbit and classification

Karge orbits the Sun in the inner main-belt at a distance of 1.8–2.7 AU once every 3 years and 5 months (1,235 days). Its orbit has an eccentricity of 0.19 and an inclination of 4° with respect to the ecliptic.[1] first precovery was taken at the Palomar Observatory in 1971, extending the body's observation arc by 15 years prior to its official discovery observation.[4]

Physical characteristics

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Karge measures 4.335 kilometers in diameter and its surface has a high albedo of 0.341.[3] It has an absolute magnitude of 13.7.[1]

Lightcurve

As of 2017, no rotational lightcurve of Karge has been obtained from photometric observations. The body's rotation period, poles and shape remains unknown.[1][5]

Naming

This minor planet was named after Orville B. Karge (1919–1990), a teacher of physics in San Diego, California.[2] The official naming citation was published by the Minor Planet Center on 21 November 1991 (M.P.C. 19340).[6]

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 (1)–(5000) – Minor Planet Center
• 4822 Karge at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 4822 Karge at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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