1690 Mayrhofer

1690 Mayrhofer
Discovery [1]
Discovered by M. Laugier
Discovery site Nice Observatory
Discovery date 8 November 1948
Designations
MPC designation 1690 Mayrhofer
Named after
 Karl Mayrhofer
(amateur astronomer)[2]
1948 VB · 1932 WN
1953 VC2 · 1956 GN
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 82.72 yr (30212 days)
Aphelion 3.3369 AU (499.19 Gm)
Perihelion 2.7389 AU (409.73 Gm)
3.0379 AU (454.46 Gm)
Eccentricity 0.098424
5.30 yr (1934.0 d)
272.34°
0° 11m 10.104s / day
Inclination 13.048°
230.46°
156.68°
Earth MOID 1.74841 AU (261.558 Gm)
Jupiter MOID 2.09657 AU (313.642 Gm)
Jupiter Tisserand parameter 3.194
Physical characteristics
Dimensions 31.71 km[4]
31.18±0.49 km[5]
31.198±7.539 km[6]
33.81±1.38 km[7]
31.63 km (derived)[3]
Mean radius
 15.855 ± 1 km
22.194 h (0.9248 d)[1][8]
19.0808±0.1110 h[9]
0.0767[4]
0.082±0.003[5]
0.0792±0.0384[6]
0.056±0.012[7]
0.0641 (derived)[3]
0.0767 ± 0.011[1]
C [3]
11.1

    1690 Mayrhofer, provisional designation 1948 VB, is a dark asteroid from the outer region of the asteroid belt, about 32 kilometers in diameter. It was discovered by French female astronomer Marguerite Laugier at Nice Observatory in south-east France on 8 November 1948.[10]

    The asteroid orbits the Sun at a distance of 2.7–3.3 AU once every 5.29 years (1,934 days). Its orbit shows an eccentricity of 0.10 and is tilted by 13 degrees to the plane of the ecliptic. It takes between 19 and 22 hours to rotate once around its axis.[8][9] The C-type asteroid has a geometric albedo of 0.06–0.08 according to surveys carried out by the IRAS, Akari, WISE and NEOWISE missions.[4][5][6][7]

    Proposed by German catholic priest and amateur astronomer Otto Kippes, the asteroid was named after Austrian amateur astronomer Karl Mayrhofer (1903–1982). He lived in the Austrian town of Ried im Innkreis and was known for his calculations of orbital elements for asteroids.[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1690 Mayrhofer (1948 VB)" (2015-08-17 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1690) Mayrhofer. Springer Berlin Heidelberg. p. 134. ISBN 978-3-540-29925-7. Retrieved 10 November 2015.
    3. 1 2 3 4 "LCDB Data for (1690) Mayrhofer". Asteroid Lightcurve Database (LCDB). Retrieved 10 November 2015.
    4. 1 2 3 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. Bibcode:2004PDSS...12.....T. Retrieved 10 November 2015.
    5. 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 10 November 2015.
    6. 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 10 November 2015.
    7. 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:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 10 November 2015.
    8. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1690) Mayrhofer". Geneva Observatory. Retrieved 10 November 2015.
    9. 1 2 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:1504.04041Freely accessible. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 10 November 2015.
    10. ↑ "1690 Mayrhofer (1948 VB)". Minor Planet Center. Retrieved 10 November 2015.

    External links


    This article is issued from Wikipedia - version of the 9/23/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.