1626 Sadeya

1626 Sadeya
Discovery [1]
Discovered by J. Comas Solà
Discovery site Fabra Observatory
Discovery date 10 January 1927
Designations
MPC designation 1626 Sadeya
Named after
 Spanish and American Astronomical Society [2]
1927 AA · 1956 AA
main-belt · Phocaea [3]
Orbital characteristics [1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc 88.44 yr (32303 days)
Aphelion 3.0119 AU (450.57 Gm)
Perihelion 1.7155 AU (256.64 Gm)
2.3637 AU (353.60 Gm)
Eccentricity 0.27425
3.63 yr (1327.3 d)
208.44°
0° 16m 16.392s / day
Inclination 25.290°
279.54°
148.83°
Earth MOID 0.759839 AU (113.6703 Gm)
Jupiter MOID 2.3348 AU (349.28 Gm)
Jupiter Tisserand parameter 3.373
Physical characteristics
Dimensions 14.77±0.19 km[4]
15.14±0.49 km[5]
16.70 km (calculated)[3]
3.420 h (0.1425 d)[1][6][7][8]
3.438±0.009 h[9]
3.414±0.005 h[10]
3.42048±0.00005 h[7]
3.419±0.001 h[11]
0.512±0.016[4]
0.486±0.067[5]
0.23 (assumed)[3]
S [3]
11.1

    1626 Sadeya, provisional designation 1927 AA, is an eccentric, stony asteroid with a tilted orbit from the inner regions of the asteroid belt. It was discovered on 10 January 1927 at Fabra Observatory in Barcelona by Spanish astronomer of Catalan origin, Josep Comas i Solà.[12]

    The asteroid is a member of the Phocaea family and measures about 15 kilometers in diameter. It orbits the Sun at a distance of 1.7–3.0 AU once every 3.63 years (1,327 days). Its orbit shows a high eccentricity of 0.27 and is heavily tilted by 25 degrees towards the plane of the ecliptic. It has a rotation period of 3.42 hours.[6][7][8] While observations by the space-based Akari and WISE/NEOWISE mission found an exceptionally high albedo of about 0.50 for the S-type asteroid, the Lightcurve Database project assumes a much lower value of 0.23.[3]

    The minor planet was named after the Spanish and American Astronomical Society (Spanish: Sociedad Astrónomica de España y América), also known by its acronym "Sadeya". It was founded by Comas i Solà, who also was its first president.[2]

    References

    1. 1 2 3 "JPL Small-Body Database Browser: 1626 Sadeya (1927 AA)" (2015-08-15 last obs.). Jet Propulsion Laboratory. Retrieved 22 April 2016.
    2. 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1626) Sadeya. Springer Berlin Heidelberg. p. 129. ISBN 978-3-540-29925-7. Retrieved November 2015.
    3. 1 2 3 4 5 "LCDB Data for (1626) Sadeya". Asteroid Lightcurve Database (LCDB). Retrieved November 2015.
    4. 1 2 Usui, Fumihiko; Kuroda, Daisuke; Müller, Thomas G.; Hasegawa, Sunao; Ishiguro, Masateru; 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.
    5. 1 2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; 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:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved November 2015.
    6. 1 2 Oey, Julian; Krajewski, Ric (June 2008). "Lightcurve Analysis of Asteroids from Kingsgrove and Other Collaborating Observatories in the First Half of 2007". The Minor Planet Bulletin 35 (2): 47–48. Bibcode:2008MPBu...35...47O. ISSN 1052-8091. Retrieved November 2015.
    7. 1 2 3 Behrend, Raoul. "Asteroids and comets rotation curves – (1626) Sadeya". Geneva Observatory. Retrieved November 2015.
    8. 1 2 Warner, Brian D. (July 2014). "Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2014 January-March". The Minor Planet Bulletin 41 (3): 144–155. Bibcode:2014MPBu...41..144W. ISSN 1052-8091. Retrieved November 2015.
    9. ↑ Florczak, M.; Dotto, E.; Barucci, M. A.; Birlan, M.; Erikson, A.; et al. (November 1997). "Rotational properties of main belt asteroids: photoelectric and CCD observations of 15 objects". Planetary and Space Science 45 (11): 1423–1435. Bibcode:1997P&SS...45.1423F. doi:10.1016/S0032-0633(97)00121-9. Retrieved November 2015.
    10. ↑ Warner, Brian D. (April 2010). "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2009 September-December". The Minor Planet Bulletin 37 (2): 57–64. Bibcode:2010MPBu...37...57W. ISSN 1052-8091. Retrieved November 2015.
    11. ↑ Benishek, Vladimir (January 2015). "Rotation Period Determinations for 1095 Tulipa, 1626 Sadeya 2132 Zhukov, and 7173 Sepkoski". The Minor Planet Bulletin 42 (1): 75–76. Bibcode:2015MPBu...42...75B. ISSN 1052-8091. Retrieved November 2015.
    12. ↑ "1626 Sadeya (1927 AA)". 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.