5656 Oldfield

5656 Oldfield
Discovery
Discovered by	W. Baade
Discovery site	Bergedorf Obs.
Discovery date	8 October 1920
Designations
MPC designation	(5656) Oldfield
Named after	Mike Oldfield ; (English musician)
Alternative designations	A920 TA · 1978 WW18; 1981 JZ5
Minor planet category	main-belt · (inner); background
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 0
Observation arc	97.29 yr (35,536 d)
\|{{{apsis}}}\|helion}}	3.1076 AU
\|{{{apsis}}}\|helion}}	1.8111 AU
Semi-major axis	2.4594 AU
Eccentricity	0.2636
Orbital period	3.86 yr (1,409 d)
Mean anomaly	125.66°
Mean motion	0° 15m 19.8s / day
Inclination	4.0144°
Longitude of ascending node	248.67°
\|{{{apsis}}}\|helion}}	83.725°
Physical characteristics
Mean diameter	7.691±0.051 km
Geometric albedo	0.075±0.009
Absolute magnitude (H)	14.1

Short description: Asteroid

5656 Oldfield, provisional designation A920 TA, is a background asteroid from the inner regions of the asteroid belt, approximately 7.7 kilometers (4.8 miles) in diameter. It was discovered on 8 October 1920, by astronomer Walter Baade at the Bergedorf Observatory in Hamburg, Germany. The asteroid was named for English musician Mike Oldfield.^[1]

Orbit and classification

Oldfield is a non-family asteroid of the main belt's background population.^[3] It orbits the Sun in the inner main-belt at a distance of 1.8–3.1 AU once every 3 years and 10 months (1,409 days; semi-major axis of 2.46 AU). Its orbit has an eccentricity of 0.26 and an inclination of 4° with respect to the ecliptic.^[2]

The body's observation arc begins at Bergedorf two nights after its official discovery observation.^[1]

Physical characteristics

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Oldfield measures 7.691 kilometers in diameter and its surface has an albedo of 0.075.^[4]

Rotation period

As of 2018, no rotational lightcurve of Oldfield has been obtained from photometric observations. The body's rotation period, poles and shape remain unknown.^[2]

Naming

This minor planet was named after English composer and multi-instrumentalist Mike Oldfield (born 1953), creator of the famed Tubular Bells albums.^[1] The official naming citation was proposed by Gareth V. Williams and published by the Minor Planet Center on 25 April 1994 (M.P.C. 23353).^[5]

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 "5656 Oldfield (A920 TA)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=5656.
↑ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 "JPL Small-Body Database Browser: 5656 Oldfield (A920 TA)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2005656.
↑ ^3.0 ^3.1 "Asteroid 5656 Oldfield – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=5656.
↑ ^4.0 ^4.1 ^4.2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J. et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal 741 (2): 20. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 10 April 2018.
↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.

External links

Asteroid Lightcurve Database (LCDB), query form (info )
Dictionary of Minor Planet Names, Google books
Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
5656 Oldfield at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
5656 Oldfield at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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Original source: https://en.wikipedia.org/wiki/5656 Oldfield. Read more

[MPC-object-1] 1.0 ^1.1 ^1.2 ^1.3 ^1.4 ^1.5 "5656 Oldfield (A920 TA)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=5656.

[jpldata-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 "JPL Small-Body Database Browser: 5656 Oldfield (A920 TA)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2005656.

[AstDys-object-3] 3.0 ^3.1 "Asteroid 5656 Oldfield – Proper Elements". AstDyS-2, Asteroids – Dynamic Site. https://newton.spacedys.com/astdys/index.php?pc=1.1.6&n=5656.

[Masiero-2011-4] 4.0 ^4.1 ^4.2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J. et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal 741 (2): 20. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 10 April 2018.

[MPC-Circulars-Archive-5] "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.