1611 Beyer

1611 Beyer
Discovery [1]
Discovered by K. Reinmuth
Discovery site Heidelberg Obs.
Discovery date 17 February 1950
Designations
MPC designation 1611 Beyer
Named after
 Max Beyer[2]
1950 DJ · 1958 RE
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 65.66 yr (23,983 days)
Aphelion 3.6850 AU
Perihelion 2.6661 AU
3.1756 AU
Eccentricity 0.1604
5.66 yr (2,067 days)
11.099°
Inclination 4.2799°
237.54°
75.932°
Physical characteristics
Dimensions 23.25±1.77 km[4]
24.44±0.19 km[5]
25.44 km (calculated)[3]
13.29 h[6]
13.2608±0.0113 h[7]
0.101±0.017[4]
0.062±0.014[5]
0.057 (assumed)[3]
C [3]
11.8

    1611 Beyer, provisional designation 1950 DJ, is a carbonaceous asteroid from the outer region of the asteroid belt, about 25 kilometers in diameter. It was discovered by German astronomer Karl Reinmuth at Heidelberg Observatory on 17 February 1950.[8]

    The asteroid orbits the Sun at a distance of 2.7–3.7 AU once every 5.66 years (2,067 days). Its orbit shows an eccentricity of 0.16 and is tilted by 4 degrees to the plane of the ecliptic. Its rotation period has been determined to take about 13 hours and 30 minutes.[6] The C-type body has an albedo between 0.06 and 0.10. according to the surveys carried out by Akari and WISE/NEOWISE.[4][5]

    It was named by the discoverer after Max Beyer (1894–1982), astronomer at the Bergedorf Observatory in Hamburg.[2]

    See also

    References

    1. 1 2 "JPL Small-Body Database Browser: 1611 Beyer (1950 DJ)" (2015-10-17 last obs.). Jet Propulsion Laboratory. Retrieved November 2015.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1611) Beyer. Springer Berlin Heidelberg. p. 128. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 "LCDB Data for (1611) Beyer". 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 – (1611) Beyer". Geneva Observatory. Retrieved November 2015.
    7. ↑ Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved November 2015.
    8. ↑ "1611 Beyer (1950 DJ)". Minor Planet Center. Retrieved November 2015.

    External links


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