1146 Biarmia

1146 Biarmia ^[1]

Discovery
Discovered by	Grigory Neujmin
Discovery date	7 May 1929
Orbital characteristics [1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc	86.76 yr (31690 days)
Aphelion	3.8212 AU (571.64 Gm)
Perihelion	2.2698 AU (339.56 Gm)
Semi-major axis	3.0455 AU (455.60 Gm)
Eccentricity	0.25471
Orbital period	5.31 yr (1941.3 d)
Mean anomaly	110.187°
Mean motion	0° 11^m 7.584^s / day
Inclination	17.066°
Longitude of ascending node	213.889°
Argument of perihelion	63.831°
Earth MOID	1.31184 AU (196.248 Gm)
Jupiter MOID	1.52906 AU (228.744 Gm)
Jupiter Tisserand parameter	3.123
Physical characteristics
Mean radius	15.57±0.6 km
Rotation period	5.4700 h (0.22792 d)
Geometric albedo	0.2190±0.018
Absolute magnitude (H)	9.80

1146 Biarmia is a main belt asteroid orbiting the Sun. Approximately 31 kilometers in diameter, it makes a revolution around the Sun once every 5 years. It was discovered by Grigory Nikolaevich Neujmin on May 7, 1929.^[1] After being assigned a provisional designation of 1929 JF, it was named after a legendary country Bjarmland in northern Russia near the Finnish border.^[2]

Photometric observations of this asteroid collected during 1999 show a rotation period of 11.514 ± 0.004 hours with a brightness variation of 0.32 magnitude.^[3]

References

1. "JPL Small-Body Database Browser". Retrieved 1 May 2016.
2. Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer. ISBN 3-540-00238-3.
3. Warner, B. (March 2000), "Asteroid Photometry at the Palmer Divide Observatory", The Minor Planet Bulletin 27: 4–6, Bibcode:2000MPBu...27....4W.

External links

• 1146 Biarmia at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters