1842 Hynek

1842 Hynek
Discovery [1]
Discovered by L. Kohoutek
Discovery site Bergedorf Obs.
Discovery date 14 January 1972
Designations
MPC designation 1842 Hynek
Named after
 Hynek Kohoutek
(father of discoverer)[2]
1972 AA · 1928 DE
1929 SO · 1952 DN2
1953 UV · 1962 EA
1963 SS · 1964 YF
1966 HE · 1969 EG1
2004 TE363
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 86.47 yr (31583 days)
Aphelion 2.6765 AU (400.40 Gm)
Perihelion 1.8549 AU (277.49 Gm)
2.2657 AU (338.94 Gm)
Eccentricity 0.18131
3.41 yr (1245.7 d)
166.10°
0° 17m 20.364s / day
Inclination 5.3552°
153.46°
125.66°
Earth MOID 0.843163 AU (126.1354 Gm)
Jupiter MOID 2.46084 AU (368.136 Gm)
Jupiter Tisserand parameter 3.589
Physical characteristics
Dimensions 8.171±0.027 km[4]
9.80 km (calculated)[3]
3.94±0.02 h,[5] 3.9410 h (0.16421 d)[1]
0.2899±0.0415[4]
0.20 (assumed)[3]
B–V = 0.871
U–B = 0.522
Tholen = S
12.41

    1842 Hynek, provisional designation 1972 AA, is a stony asteroid from the inner regions of the asteroid belt, about 9 kilometers in diameter. It was discovered by Czech astronomer Luboš Kohoutek at the Hamburger Bergedorf Observatory, Germany on 14 January 1972.[6]

    The asteroid is a member of the Flora family. It orbits the Sun at a distance of 1.9–2.7 AU once every 3 years and 5 months (1,246 days). The S-type asteroid has an albedo of about 0.20–0.30[4] and rotates every 3.94±0.02 hours around its axis.

    It was named after the first name of the discoverer's father, Hynek Kohoutek, on the occasion of his 70th birthday.[2]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1842 Hynek (1972 AA)" (2015-10-12 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1842) Hynek. Springer Berlin Heidelberg. p. 148. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 "LCDB Data for (1842) Hynek". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015.
    5. ↑ Behrend, Raoul. "Asteroids and comets rotation curves – (1842) Hynek". Geneva Observatory. Retrieved November 2015.
    6. ↑ "1842 Hynek (1972 AA)". Minor Planet Center. Retrieved November 2015.

    External links


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