1682 Karel

1682 Karel

Light-curve-based 3D-model of 1682 Karel
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 2 August 1949
Designations
MPC designation 1682 Karel
Named after
 Karel van Houten
(son of astronomers)
Cornelis and Ingrid [2]
1949 PH · 1929 SD
1939 RK · 1946 WC
1949 QQ · 1949 QX1
1949 SL · 1959 PH
1988 CR3
main-belt · Flora [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 85.71 yr (31304 days)
Aphelion 2.6681 AU (399.14 Gm)
Perihelion 1.8088 AU (270.59 Gm)
2.2384 AU (334.86 Gm)
Eccentricity 0.19195
3.35 yr (1223.2 d)
289.87°
0° 17m 39.48s / day
Inclination 4.0278°
325.79°
9.9653°
Earth MOID 0.797136 AU (119.2498 Gm)
Jupiter MOID 2.69056 AU (402.502 Gm)
Jupiter Tisserand parameter 3.609
Physical characteristics
Dimensions 4.80±0.55 km[4]
7.27±0.20 km[5]
7.82 km (calculated)[3]
3.37485 h (0.140619 d)[1][6][7]
0.531±0.124[4]
0.278±0.027[5]
0.24 (assumed)[3]
S [3]
12.7

    1682 Karel, provisional designation 1949 PH, is a stony asteroid from the inner regions of the asteroid belt, about 7 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 2 August 1949.[8]

    The asteroid is a member of the Flora family, one of the largest groups of asteroids in the main-belt. It orbits the Sun at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,223 days). Its orbit shows an eccentricity of 0.19 and is tilted by 4 degrees to the plane of the ecliptic. It has a rotation period of 3.4 hours.[6][7] The S-type asteroid has a high geometric albedo of 0.28 and 0.53, determined by the WISE/NEOWISE and Akari missions.[4][5]

    It was named after Karel van Houten, son of Dutch astronomers Ingrid and Cornelis van Houten of the Leiden Observatory.[2] Together with Ingrid, Reinmuth discovered the minor planet 1691 Oort in 1956. Reinmuth also named his two discoveries, 1673 van Houten and 1674 Groeneveld, after the prolific couple of Dutch astronomers.[9][10]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1682 Karel (1949 PH)" (2015-06-12 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1682) Karel. Springer Berlin Heidelberg. p. 134. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 "LCDB Data for (1682) Karel". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 3 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; et al. (October 2011). "Asteroid Catalog Using Akari: AKARI/IRC Mid-Infrared Asteroid Survey". Publications of the Astronomical Society of Japan 63 (5): 1117–1138. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved November 2015.
    5. 1 2 3 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters 759 (1): 5. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved November 2015.
    6. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1682) Karel". Geneva Observatory. Retrieved November 2015.
    7. 1 2 Hanus, J.; Durech, J.; Broz, M.; Warner, B. D.; Pilcher, F.; et al. (June 2011). "A study of asteroid pole-latitude distribution based on an extended set of shape models derived by the lightcurve inversion method". Astronomy & Astrophysics 530: 16. arXiv:1104.4114. Bibcode:2011A&A...530A.134H. doi:10.1051/0004-6361/201116738. Retrieved November 2015.
    8. ↑ "1682 Karel (1949 PH)". Minor Planet Center. Retrieved November 2015.
    9. ↑ Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1673) van Houten. Springer Berlin Heidelberg. p. 133. ISBN 978-3-540-29925-7. Retrieved November 2015.
    10. ↑ Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1674) Groeneveld. Springer Berlin Heidelberg. p. 133. ISBN 978-3-540-29925-7. Retrieved November 2015.

    External links


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