1842 Hynek information

1842 Hynek
Discovery
Discovered by	L. Kohoutek
Discovery site	Hamburg Observatory
Discovery date	14 January 1972
Designations
MPC designation	(1842) Hynek
Named after	Hynek Kohoutek; (father of discoverer)
Alternative designations	1972 AA · 1928 DE; 1929 SO · 1952 DN2; 1953 UV · 1962 EA; 1963 SS · 1964 YF; 1966 HE · 1969 EG1; 2004 TE363
Minor planet category	main-belt · Flora
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	87.59 yr (31,992 days)
Aphelion	2.6758 AU
Perihelion	1.8568 AU
Semi-major axis	2.2663 AU
Eccentricity	0.1807
Orbital period (sidereal)	3.41 yr (1,246 days)
Mean anomaly	339.54°
Mean motion	0° 17m 20.04s / day
Inclination	5.3539°
Longitude of ascending node	153.45°
Argument of perihelion	125.55°
Physical characteristics
Dimensions	7.996±0.073; 8.171±0.027 km; 9.31±1.70 km; 9.80 km (calculated)
Synodic rotation period	3.94±0.02 h; 3.9410±0.0007 h
Geometric albedo	0.20 (assumed); 0.28±0.14; 0.2899±0.0415; 0.300±0.073
Spectral type	Tholen = S · S; B–V = 0.871; U–B = 0.522
Absolute magnitude (H)	12.41 · 12.89±0.41

1842 Hynek, provisional designation 1972 AA, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 8 kilometers in diameter.

The asteroid was discovered on 14 January 1972 by Czech astronomer Luboš Kohoutek at Hamburg Observatory, who named it after his father, Hynek Kohoutek.^[9]

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