Astronomy:1835 Gajdariya

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1835 Gajdariya
1835Gajdariya (Lightcurve Inversion).png
Lightcurve-based 3D-model of Gajdariya
Discovery[1]
Discovered byT. Smirnova
Discovery siteCrimean Astrophysical Obs.
Discovery date30 July 1970
Designations
(1835) Gajdariya
Named afterArkady Gaidar
(Russian writer)[2]
1970 OE · 1958 BH
1961 TJ · 1961 TQ1
1963 DB · 1971 UJ3
1973 EN
Minor planet categorymain-belt · Koronis[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc59.28 yr (21,653 days)
|{{{apsis}}}|helion}}3.0842 AU
|{{{apsis}}}|helion}}2.5811 AU
2.8326 AU
Eccentricity0.0888
Orbital period4.77 yr (1,741 days)
Mean anomaly258.14°
Mean motion0° 12m 24.12s / day
Inclination0.9857°
Longitude of ascending node296.26°
80.748°
Physical characteristics
Dimensions12.40 km (calculated)[3]
12.704±0.035[4]
12.843±0.142 km[5]
13.30±1.04 km[6]
Rotation period6.3276±0.0035 h[7]
6.33768 h[8]
Geometric albedo0.209±0.040[6][4]
0.24 (assumed)[3]
0.2703±0.0433[5]
S[3]
Absolute magnitude (H)11.5[5] · 11.7[1][3][6] · 11.70±0.28[9]


1835 Gajdariya, provisional designation 1970 OE, is a stony Koronian asteroid from the outer region of the asteroid belt, approximately 12.5 kilometers in diameter.

It was discovered on 30 July 1970, by Russian astronomer Tamara Smirnova at Crimean Astrophysical Observatory in Nauchnyj, on the Crimean peninsula.[10] It was named after Russian writer Arkady Gaidar.[2]

Characteristics

The S-type asteroid is a member of the Koronis family, which is named after 158 Koronis and consists of about 300 known bodies with nearly ecliptical orbits. It orbits the Sun in the outer main-belt at a distance of 2.6–3.1 AU once every 4 years and 9 months (1,741 days). Its orbit has an eccentricity of 0.09 and an inclination of 1° with respect to the ecliptic.[1] Its spectra is that of an S-type asteroid with a geometric albedo of about 0.24. It has a rotation period of 6.33 hours.[7][8]

Naming

It was named in honor of Soviet–Russian writer and children's author Arkady Gaidar (1904–1941), who joined the partisans and became a machine gunner during the Nazi invasion of the Soviet Union.[2] Gaidar was killed in combat in October 1941. The official naming citation was published by the Minor Planet Center on 1 June 1975 (M.P.C. 3825).[11]

References

  1. ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 1835 Gajdariya (1970 OE)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001835. Retrieved 8 June 2017. 
  2. ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2007). "(1835) Gajdariya". Dictionary of Minor Planet Names – (1835) Gajdariya. Springer Berlin Heidelberg. p. 147. doi:10.1007/978-3-540-29925-7_1836. ISBN 978-3-540-00238-3. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 "LCDB Data for (1835) Gajdariya". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1835%7CGajdariya. Retrieved 14 December 2016. 
  4. ↑ 4.0 4.1 Masiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R. et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos". The Astrophysical Journal 791 (2): 11. doi:10.1088/0004-637X/791/2/121. Bibcode: 2014ApJ...791..121M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2014ApJ...791..121M. Retrieved 14 December 2016. 
  5. ↑ 5.0 5.1 5.2 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. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M. 
  6. ↑ 6.0 6.1 6.2 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. doi:10.1088/2041-8205/759/1/L8. Bibcode: 2012ApJ...759L...8M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M. Retrieved 14 December 2016. 
  7. ↑ 7.0 7.1 Molnar, Lawrence A.; Haegert, Melissa, J.; Beaumont, Christopher N.; Block, Marjorie J.; Brom, Timothy H.; Butler, Andrew R. et al. (March 2008). "Lightcurve Analysis of a Magnitude Limited Asteroid Sample". The Minor Planet Bulletin 35 (1): 9–12. ISSN 1052-8091. Bibcode: 2008MPBu...35....9M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2008MPBu...35....9M. Retrieved 14 December 2016. 
  8. ↑ 8.0 8.1 Hanus, J.; Broz, M.; Durech, J.; Warner, B. D.; Brinsfield, J.; Durkee, R. et al. (November 2013). "An anisotropic distribution of spin vectors in asteroid families". Astronomy and Astrophysics 559: 19. doi:10.1051/0004-6361/201321993. Bibcode: 2013A&A...559A.134H. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2013A&A...559A.134H. Retrieved 14 December 2016. 
  9. ↑ 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 14 December 2016. 
  10. ↑ "1835 Gajdariya (1970 OE)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=1835. Retrieved 14 December 2016. 
  11. ↑ Schmadel, Lutz D. (2009). "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7. https://archive.org/details/dictionaryminorp2008schm. 

External links



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