2575 Bulgaria

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2575 Bulgaria
Discovery [1]
Discovered by T. Smirnova
Discovery site Crimean Astrophysical Obs.
Discovery date 4 August 1970
Designations
MPC designation 2575 Bulgaria
Named after
Bulgaria (country)[2]
1970 PL · 1970 QD
1977 RQ6 · 1980 PY
A923 PB
main-belt · Flora[3]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 92.80 yr (33,897 days)
Aphelion 2.5153 AU
Perihelion 1.9644 AU
2.2398 AU
Eccentricity 0.1230
3.35 yr (1,224 days)
20.918°
0° 17m 38.4s / day
Inclination 4.6740°
321.99°
287.24°
Physical characteristics
Dimensions 6.41±0.29 km[4]
7.08 km (calculated)[3]
8.010±0.065 km[5]
8.6157±0.0082 h[6]
9.480±0.001 h[7]
0.24 (assumed)[3]
0.2521±0.0375[5]
0.392±0.060[4]
SMASS = Sr [1] · S[3]
12.466±0.003 (R)[6] · 12.6[5][4] · 12.7[1] · 12.92[3] · 13.31±0.29[8]

2575 Bulgaria, provisional designation 1970 PL, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 4 August 1970, by Russian astronomer Tamara Smirnova at the Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.[9]

Classified as a Sr-subtype in the SMASS taxonomy, the S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months (1,224 days). Its orbit has an eccentricity of 0.12 and an inclination of 5° with respect to the ecliptic.[1] It has a rotation period of 8.6 hours[6] and an albedo of 0.24, as assumed by the Collaborative Asteroid Lightcurve Link.[3]

The minor planet was named after the European country Bulgaria. At the time of naming, it was the People's Republic of Bulgaria (1946–1990), a former satellite state of the Soviet Union and member of the Warsaw Pact.[2] Naming citation was published on 13 July 1984 (M.P.C. 8912).[10]

References[edit]

  1. ^ a b c d e "JPL Small-Body Database Browser: 2575 Bulgaria (1970 PL)" (2016-06-08 last obs.). Jet Propulsion Laboratory. Retrieved 6 December 2016. 
  2. ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (2575) Bulgaria. Springer Berlin Heidelberg. p. 210. ISBN 978-3-540-00238-3. Retrieved 6 December 2016. 
  3. ^ a b c d e f "LCDB Data for (2575) Bulgaria". Asteroid Lightcurve Database (LCDB). Retrieved 6 December 2016. 
  4. ^ a b c 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:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 6 December 2016. 
  5. ^ a b c Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results" (PDF). The Astrophysical Journal. 741 (2): 25. arXiv:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 6 December 2016. 
  6. ^ a b c 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 6 December 2016. 
  7. ^ Behrend, Raoul. "Asteroids and comets rotation curves – (2575) Bulgaria". Geneva Observatory. Retrieved 6 December 2016. 
  8. ^ 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 6 December 2016. 
  9. ^ "2575 Bulgaria (1970 PL)". Minor Planet Center. Retrieved 6 December 2016. 
  10. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 6 December 2016. 

External links[edit]