1708 Pólit

1708 Pólit
Discovery [1]
Discovered by J. Comas Solà
Discovery site Fabra Observatory
Discovery date 30 November 1929
Designations
MPC designation 1708 Polit
Named after
 Isidre Pólit
(astronomer)[2]
1929 XA · 1934 XF
1939 YB
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 27 June 2015 (JD 2457200.5)
Uncertainty parameter 0
Observation arc 85.54 yr (31,243 days)
Aphelion 3.8087 AU
Perihelion 2.0190 AU
2.9139 AU
Eccentricity 0.3070
4.97 yr (1,817 days)
54.505°
Inclination 6.0410°
192.21°
249.17°
Earth MOID 1.0446 AU
Physical characteristics
Dimensions 29.30 km[4]
33.44±1.53 km[5]
30.282±0.071 km[6]
29.32 km (derived)[3]
7.520 h[7]
7.5085±0.001 h[8]
7.5080±0.0002 h[9]
0.0392[4]
0.035±0.004[5]
0.0350±0.0055[6]
0.0429 (derived)[3]
C [3]
11.7

    1708 Polit, provisional designation 1929 XA, is a dark and eccentric asteroid from the outer region of the asteroid belt, about 29 kilometers in diameter. It was discovered by Spanish astronomer of Catalan origin Josep Comas i Solà at the Fabra Observatory in Barcelona on 30 November 1929.[10]

    The C-type asteroid orbits the Sun at a distance of 2.0–3.8 AU once every 4.97 years (1,817 days). Its orbit shows a high eccentricity of 0.31 and is inclined by 6 degrees to the plane of the ecliptic. Light-curve observations gave a rotation period of 7.520 hours. The carbonaceous asteroid has a low geometric albedo of about 0.04.[4][5][6]

    The asteroid was named in memory of the Fabra Observatory's second director of the astronomical section, Isidre Pólit (1880–1958), who was an assiduous observer of minor planets and comets.[2]

    References

    1. 1 2 "JPL Small-Body Database Browser: 1708 Polit (1929 XA)" (2015-06-13 last obs.). Jet Propulsion Laboratory. Retrieved November 2015.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1708) Pólit. Springer Berlin Heidelberg. p. 136. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 "LCDB Data for (1708) Polit". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 3 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 November 2015.
    5. 1 2 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. Bibcode:2011PASJ...63.1117U. doi:10.1093/pasj/63.5.1117. Retrieved November 2015.
    6. 1 2 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. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved November 2015.
    7. ↑ Behrend, Raoul. "Asteroids and comets rotation curves – (1708) Polit". Geneva Observatory. Retrieved November 2015.
    8. ↑ Clark, Maurice (October 2011). "Asteroid Lightcurves from the Preston Gott and McDonald Observatories". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 38 (4): 187–189. Bibcode:2011MPBu...38..187C. ISSN 1052-8091. Retrieved November 2015.
    9. ↑ Clark, Maurice (July 2015). "Asteroid Photometry from the Preston Gott Observatory". Bulletin of the Minor Planets (Section of the Association of Lunar and Planetary Observers) 42 (3): 163–166. Bibcode:2015MPBu...42..163C. ISSN 1052-8091. Retrieved November 2015.
    10. ↑ "1708 Polit (1929 XA)". Minor Planet Center. Retrieved November 2015.

    External links


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