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2486 Metsähovi

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Asteroid
2486 Metsahovi
Discovery 
Discovered byY. Vaisala
Discovery siteTurku Obs.
Discovery date22 March 1939
Designations
MPC designation(2486) Metsahovi
Named afterfarm near Helsinki
Metsähovi Radio Obs.
Alternative designations1939 FY · 1961 TZ
1970 FE · 1970 GN
1975 WC · 1978 SW2
Minor planet categorymain-belt · (inner)
Orbital characteristics
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc78.11 yr (28,531 days)
Aphelion2.4489 AU
Perihelion2.0874 AU
Semi-major axis2.2682 AU
Eccentricity0.0797
Orbital period (sidereal)3.42 yr (1,248 days)
Mean anomaly47.042°
Mean motion0° 17 18.6 / day
Inclination8.4101°
Longitude of ascending node359.97°
Argument of perihelion101.37°
Known satellites1
Physical characteristics
Dimensions7.883±0.062 km
8.42±0.03 km
12.782 km
Synodic rotation period4.4518 h (0.18549 d)
Geometric albedo0.232±0.023
0.268±0.031
Absolute magnitude (H)12.5

2486 Metsähovi, provisional designation 1939 FY, is a stony asteroid and synchronous binary system from the inner regions of the asteroid belt, approximately 10 kilometers in diameter. It was discovered on 22 March 1939, by Finnish astronomer Yrjö Väisälä at the Turku Observatory.

Orbit and classification

Metsähovi orbits the Sun at a distance of 2.1–2.4 AU once every 3 years and 5 months (1,248 days). Its orbit has an eccentricity of 0.08 and an inclination of 8° with respect to the ecliptic.

Naming

This minor planet was named for a donated farm near Helsinki, where various institutes have established their observing stations: the Finnish Geodetic Institute for space geodesy, the University of Helsinki for astrophysics, and the Helsinki University of Technology for radio astronomy. (Also see Metsähovi Radio Observatory). The approved naming citation was published by the Minor Planet Center on 26 May 1983 (M.P.C. 7946).

Satellite

S/2006 (2486) 1
Discovery
Discovered byM. Pikler, M. Husarik, G. Cervak, W. Cooney, J. Gross, D. Terrell, P. Pravec, P. Kusnirak, A. Galad, J. Vilagi, L. Kornos, S. Gajdos, V. Reddy, and R. Dyvig
Discovery date2006/12/12
Detection methodLight curve
Orbital characteristics
Satellite of22486 Metsähovi
Physical characteristics
Sidereal rotation period2.6404 hours

A moon was discovered in 2006 from lightcurve observations and announced in 2007.

References

  1. ^ "JPL Small-Body Database Browser: 2486 Metsahovi (1939 FY)" (2017-03-29 last obs.). Jet Propulsion Laboratory. Retrieved 18 June 2017.
  2. ^ Schmadel, Lutz D. (2007). "(2486) Metsähovi". Dictionary of Minor Planet Names – (2486) Metsähovi. Springer Berlin Heidelberg. p. 203. doi:10.1007/978-3-540-29925-7_2487. ISBN 978-3-540-00238-3.
  3. ^ "LCDB Data for (2486) Metsähovi". Asteroid Lightcurve Database (LCDB). Retrieved 18 June 2017.
  4. ^ Johnston, Robert. "(2486) Metsahovi". johnstonsarchive.net. Retrieved 28 May 2015.
  5. ^ Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal. 791 (2): 11. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 18 June 2017.
  6. "2486 Metsahovi (1939 FY)". Minor Planet Center. Retrieved 18 June 2017.
  7. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 18 June 2017.

External links

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