16879 Campai

16879 Campai
Discovery [1]
Discovered by A. Boattini
M. Tombelli
Discovery site Pistoia Mountains Obs.
Discovery date 24 January 1998
Designations
MPC designation 16879 Campai
Named after
 Paolo Campai
(amateur astronomer)[2]
1998 BH10
main-belt · (middle)
Orbital characteristics [1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 38.62 yr (14,106 days)
Aphelion 2.8274 AU
Perihelion 2.6923 AU
2.7598 AU
Eccentricity 0.0245
4.58 yr (1,675 days)
263.47°
0° 12m 54s / day
Inclination 7.1201°
47.298°
230.77°
Physical characteristics
Dimensions 10.61 km (calculated)[3]
314.2468±4.9149 h[4]
0.057 (assumed)[3]
C [3]
12.97±0.46[5]
13.150±0.005[4]
13.3[1] · 13.6[3]

    16879 Campai, provisional designation 1998 BH10, is carbonaceous asteroid and slow rotator from the middle region of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 24 January 1998, by Italian astronomers Andrea Boattini and Maura Tombelli at the Pistoia Mountains Astronomical Observatory in San Marcello Pistoiese, Tuscany, central Italy.[6]

    The dark C-type asteroid orbits the Sun at a distance of 2.7–2.8 AU once every 4 years and 7 months (1,675 days). Its orbit has an eccentricity of 0.02 and an inclination of 7° with respect to the ecliptic.[1] The first precovery was obtained at Siding Spring Observatory in 1977, extending the asteroid's observation arc by 22 years prior to its discovery.[6]

    A rotational light-curve for this asteroid was obtained from photometric observations made at the U.S. Palomar Transient Factory in October 2010. It rendered an exceptionally long period of 314.2468±4.9149 hours with a brightness amplitude of 0.68 in magnitude (U=2).[4] While the result is based on less than full coverage, and may be refined by future observations, the body is one of the slowest rotating asteroids known to exist. The Collaborative Asteroid Lightcurve Link calculates a diameter of 10.5 kilometers, based on an absolute magnitude of 13.6 and an assumed standard albedo for carbonaceous asteroids of 0.057.[3]

    The minor planet is named for amateur astronomer Paolo Campai (b. 1957) from Florence, who is specialized in teaching and astrophotography. Both discoverers made his acquaintance near Florence on a night in 1985, while observing comet 1P/Halley and α Phoenicis.[2] Naming citation was published on 6 August 2003 (M.P.C. 49281).[7]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 16879 Campai (1998 BH10)" (2016-03-04 last obs.). Jet Propulsion Laboratory. Retrieved 3 December 2016.
    2. 1 2 Schmadel, Lutz D. (2006). Dictionary of Minor Planet Names – (16879) Campai, Addendum to Fifth Edition: 2003–2005. Springer Berlin Heidelberg. p. 102. ISBN 978-3-540-34360-8. Retrieved 22 March 2016.
    3. 1 2 3 4 5 "LCDB Data for (16879) Campai". Asteroid Lightcurve Database (LCDB). Retrieved 17 May 2016.
    4. 1 2 3 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; 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 17 May 2016.
    5. ↑ 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 17 May 2016.
    6. 1 2 "16879 Campai (1998 BH10)". Minor Planet Center. Retrieved 22 March 2016.
    7. ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 May 2016.

    External links

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