1847 Stobbe

1847 Stobbe
Discovery [1]
Discovered by H. Thiele
Discovery site Bergedorf Obs.
Discovery date 1 February 1916
Designations
MPC designation 1847 Stobbe
Named after
 Joachim Stobbe
(astronomer)[2]
A916 CA · 1930 ML
1930 QT · 1937 AH
1951 MG · 1951 NF
1952 UC · 1959 LA
1968 OM1 · A902 YB
A906 YN
main-belt · (middle) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 85.63 yr (31,276 days)    
Aphelion 2.6651 AU
Perihelion 2.5557 AU
2.6104 AU
Eccentricity 0.0209
4.22 yr (1,541 days)
139.57°
0° 14m 0.96s / day
Inclination 11.137°
106.93°
141.21°
Physical characteristics
Dimensions 23.90±1.7 km (IRAS:3)[4]
23.33±0.64 km[5]
17.427±0.335 km[6]
22.72±2.09 km[7]
23.85 km (derived)[3]
5.617±0.002 h[8]
6.37±0.02 h[9]
0.1231±0.019 (IRAS:3)[4]
0.136±0.008[5]
0.2315±0.0162[6]
0.113±0.019[7]
0.1128 (derived)[3]
X [3] · SMASS = Xc
11.1[1][3]
11.20[7]
11.0[4][5][6]
11.15±0.11[10]

    1847 Stobbe, provisional designation A916 CA, is an asteroid from the middle region of the asteroid belt, about 23 kilometers in diameter. It was discovered on 1 February 1916, by Danish astronomer Holger Thiele at Bergedorf Observatory in Hamburg, Germany.[11]

    It orbits the Sun at a distance of 2.6–2.7 AU once every 4 years and 3 months (1,541 days). Its orbit has an eccentricity of 0.02 and an inclination of 11° with respect to the ecliptic.[1] The X-type asteroid is classified on the SMASS taxonomic scheme as a Xc-subtype, a group of bodies with intermediary spectra between those typically seen for metallic and carbonaceous bodies. In 2009, a photometric light-curve analysis by French amateur astronomer Pierre Antonini at his Observatoire de Bédoin rendered a rotation period of 5.617±0.002 hours with a brightness amplitude of 0.35 in magnitude (U=3),[8] superseding a previous observation at the Roach Motel Observatory (856) in Riverside, California, that gave a period of 6.37±0.02 hours and an amplitude of 0.27 mag.[9]

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, the asteroid has an albedo of 0.11–0.14 with a corresponding diameter between 22.7 and 23.9 kilometers.[4][5][6] The Collaborative Asteroid Lightcurve Link agrees with these results and derives an albedo of 0.113 and a diameter of 23.85 kilometers, while a study using preliminary results from NEOWISE diverges significantly from all other observations.[7]

    The minor planet was named in honor of German astronomer and observer of comets and minor planets, Joachim Otto Stobbe (1900–1943). During 1925–1927 he worked at the discovering Hamburg–Bergedorf Observatory and later at the Berlin Observatory, where he observed the rotational light-curve of the large near-Earth object 433 Eros in detail. During the last few years of his life, he was director of the Poznan Observatory in Poland.[2]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1847 Stobbe (A916 CA)" (2016-02-08 last obs.). Jet Propulsion Laboratory. Retrieved March 2016.
    2. 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1847) Stobbe. Springer Berlin Heidelberg. p. 148. ISBN 978-3-540-00238-3. Retrieved March 2016.
    3. 1 2 3 4 5 "LCDB Data for (1847) Stobbe". Asteroid Lightcurve Database (LCDB). Retrieved March 2016.
    4. 1 2 3 4 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 March 2016.
    5. 1 2 3 4 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; Ootsubo, Takafumi; 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 March 2016.
    6. 1 2 3 4 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 March 2016.
    7. 1 2 3 4 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C.; 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 March 2016.
    8. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1847) Stobbe". Geneva Observatory. Retrieved March 2016.
    9. 1 2 Malcolm, G. (June 2002). "Rotational Periods and Lightcurves of 445 Edna, 1817 Katanga and 1847 Stobbe". The Minor Planet Bulletin 29: 28–29. Bibcode:2002MPBu...29...28M. Retrieved March 2016.
    10. ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus 261: 34–47. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved March 2016.
    11. ↑ "1847 Stobbe (A916 CA)". Minor Planet Center. Retrieved March 2016.

    External links


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