Astronomy:1762 Russell

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1762 Russell
Discovery[1]
Discovered byIndiana University
(Indiana Asteroid Program)
Discovery siteGoethe Link Obs.
Discovery date8 October 1953
Designations
(1762) Russell
Named afterHenry Norris Russell[2]
(American astronomer)[2]
1953 TZ · 1947 LM
1953 TW2 · 1956 GF
1963 VN
Minor planet categorymain-belt · (outer)
Koronis[3][4]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc69.52 yr (25,393 days)
|{{{apsis}}}|helion}}3.0998 AU
|{{{apsis}}}|helion}}2.6514 AU
2.8756 AU
Eccentricity0.0780
Orbital period4.88 yr (1,781 days)
Mean anomaly21.771°
Mean motion0° 12m 7.56s / day
Inclination2.2793°
Longitude of ascending node160.64°
233.54°
Physical characteristics
Dimensions15.61 km (calculated)[3]
16.576±0.195 km[5]
16.93±0.97 km[6]
17.03±0.21 km[7]
17.033±0.209 km[7]
Rotation period12.797±0.007 h[8]
Geometric albedo0.118±0.015[6]
0.1227±0.0369[5]
0.201±0.022[7]
0.24 (assumed)[3]
S[3]
Absolute magnitude (H)11.20[7][1][3] · 11.69±0.12[9] · 11.80[6][5]


1762 Russell, provisional designation 1953 TZ, is a stony Koronian asteroid from the outer regions of the asteroid belt, approximately 16 kilometers in diameter. It was discovered by the Indiana Asteroid Program at Goethe Link Observatory near Brooklyn, Indiana, on 8 October 1953.[10] The asteroid was named after American astronomer Henry Norris Russell.[2]

Orbit and classification

Russell is a member of the Koronis family (605), a very large outer asteroid family with nearly co-planar ecliptical orbits.[3][4] It orbits the Sun in the outer main-belt at a distance of 2.7–3.1 AU once every 4 years and 11 months (1,781 days). Its orbit has an eccentricity of 0.08 and an inclination of 2° with respect to the ecliptic.[1]

The asteroid was first identified as 1947 LM at Lowell Observatory in June 1947. The body's observation arc begins with a precovery at Goethe Link Observatory in February 1950, more than 3 years prior to its official discovery observation.[10]

Physical characteristics

Russell is an assumed stony S-type asteroid, which agrees with the overall spectral type of the Koronis family.[3][11]:23

Rotation period

In April 2014, a rotational lightcurve of Russell was obtained from photometric observations at the Sonoita Research Observatory (G93) and Etscorn Campus Observatory (719). Lightcurve analysis gave a rotation period of 12.797 hours with a brightness variation of 0.46 magnitude ({{{1}}}).[8]

Diameter and albedo

According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Russell measures between 16.576 and 17.033 kilometers in diameter and its surface has an albedo between 0.118 and 0.201.[5][6][7]

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 and calculates a diameter of 15.61 kilometers based on an absolute magnitude of 11.2.[3]

Naming

This minor planet was named after distinguished American astronomer Henry Norris Russell (1877–1957), noted for the H–R diagram and research on a variety of topics in fundamental astronomy, astrophysics, and the analysis of atomic spectra (see Russell–Saunders coupling).[2]

The official naming citation was published by the Minor Planet Center on 20 February 1971 (M.P.C. 3143).[12] Russell is also honored by both a lunar and a Martian crater.[2]

References

  1. ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 1762 Russell (1953 TZ)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2001762. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 Schmadel, Lutz D. (2007). "(1762) Russell". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 140. doi:10.1007/978-3-540-29925-7_1763. ISBN 978-3-540-00238-3. 
  3. ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 "LCDB Data for (1762) Russell". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=1762%7CRussell. 
  4. ↑ 4.0 4.1 "Asteroid 1762 Russell – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. https://sbntools.psi.edu/ferret/SimpleSearch/results.action?targetName=1762+Russell#Asteroid%201762%20RussellEAR-A-VARGBDET-5-NESVORNYFAM-V3.0. 
  5. ↑ 5.0 5.1 5.2 5.3 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 6.3 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. doi:10.1093/pasj/63.5.1117. Bibcode: 2011PASJ...63.1117U.  (online, AcuA catalog p. 153)
  7. ↑ 7.0 7.1 7.2 7.3 7.4 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. 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 5 September 2017. 
  8. ↑ 8.0 8.1 Cooney, Walter R. Jr.; Gross, John; Terrell, Dirk; Klinglesmith, Daniel A. III; Hanowell, Jesse (January 2015). "Rotation Period and Lightcurve of 1762 Russell". The Minor Planet Bulletin 42 (1): 66–67. ISSN 1052-8091. Bibcode: 2015MPBu...42...66C. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015MPBu...42...66C. Retrieved 5 September 2017. 
  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 5 September 2017. 
  10. ↑ 10.0 10.1 "1762 Russell (1953 TZ)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=1762. 
  11. ↑ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 978-0-8165-3213-1. Bibcode: 2015aste.book..297N. 
  12. ↑ 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. 

External links



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