1708 Pólit

1708 Pólit
Discovery [1]
Discovered by J. Comas Solà
Discovery site Fabra Observatory
Discovery date 30 November 1929
Designations
MPC designation 1708 Pólit
Named after
 Isidre Pólit
(astronomer)[2]
1929 XA · 1934 XF
1939 YB
main-belt · (outer) [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 86.28 yr (31515 days)
Aphelion 3.8073 AU (569.56 Gm)
Perihelion 2.0176 AU (301.83 Gm)
2.9125 AU (435.70 Gm)
Eccentricity 0.30724
4.97 yr (1815.5 d)
94.238°
0° 11m 53.88s / day
Inclination 6.0437°
192.21°
249.07°
Earth MOID 1.04198 AU (155.878 Gm)
Jupiter MOID 1.5341 AU (229.50 Gm)
Jupiter Tisserand parameter 3.203
Physical characteristics
Dimensions 29.30 km[4]
33.44±1.53 km[5]
30.282±0.071 km[6]
29.32 km (derived)[3]
Mean radius
 14.65 ± 0.85 km
7.520 h (0.3133 d)[1][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]
0.0392 ± 0.005[1]
C [3]
11.8[1]

    1708 Pólit, 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 3 4 5 "JPL Small-Body Database Browser: 1708 Polit (1929 XA)" (2015-06-13 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
    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". The Minor Planet Bulletin 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". The Minor Planet Bulletin 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


    This article is issued from Wikipedia - version of the Wednesday, May 04, 2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.