1276 Ucclia
Modelled shape of Ucclia from its lightcurve
Discovery[1]
Discovered byE. Delporte
Discovery siteUccle Obs.
Discovery date24 January 1933
Designations
(1276) Ucclia
Named after
Uccle (city and observatory)[2]
1933 BA · 1963 KF
main-belt · (outer)[3]
Alauda[4]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc83.79 yr (30,604 days)
Aphelion3.4772 AU
Perihelion2.8781 AU
3.1776 AU
Eccentricity0.0943
5.66 yr (2,069 days)
351.04°
0° 10m 26.4s / day
Inclination23.274°
114.46°
333.68°
Physical characteristics
Mean diameter
30.09±0.51 km[5]
30.34 km (derived)[3]
30.63±2.1 km (IRAS:8)[6]
33.50±0.79 km[7]
36.499±0.240[8]
40.010±0.505 km[9]
4.9 h[10]
4.9073±0.0004 h[11]
4.90748±0.00005 h[12]
4.90768±0.00002 h[13]
0.0528±0.0076[9]
0.075±0.009[7][8]
0.0837 (derived)[3]
0.1303±0.019 (IRAS:8)[6]
0.141±0.006[5]
C[3]
10.40[5][6] · 10.8[7][9] · 10.9[1][3] · 10.92±0.30[14]

    1276 Ucclia (prov. designation: 1933 BA) is a carbonaceous Alauda asteroid from the outer region of the asteroid belt, approximately 31 kilometers (19 miles) in diameter. It was discovered on 24 January 1933 by Belgian astronomer Eugène Delporte at the Royal Observatory of Belgium in Uccle.[15] Two nights later, the body was independently discovered by Richard Schorr at Bergedorf Observatory in Hamburg, Germany. It was named for the Belgium city of Uccle and its discovering observatory.[2]

    Orbit and classification

    Ucclia is a member of the Alauda family (902),[4] a large family of typically bright carbonaceous asteroids named after its parent body, 702 Alauda.[16]: 23  It orbits the Sun in the outer main-belt at a distance of 2.9–3.5 AU once every 5 years and 8 months (2,069 days). Its orbit has an eccentricity of 0.09 and an inclination of 23° with respect to the ecliptic.[1] No precoveries were taken prior to its discovery.[15]

    Naming

    This minor planet was named after Uccle, in honor of both, the city and the discovering observatory (H 117).[2]

    Physical characteristics

    Rotation period

    A rotational lightcurve of Ucclia was obtained from photometric observations by Italian and French astronomers Silvano Casulli, Federico Manzini and Pierre Antonini in March 2007. It showed a well-defined rotation period of 4.90768 hours with a brightness variation of 0.40 in magnitude (U=3).[13] In June 2008, a second light-curve by Slovak astronomer Adrián Galád at Modra Observatory, gave a concurring period of 4.9073 hours with an amplitude of 0.29 in magnitude (U=3-).[11]

    Diameter and albedo

    According to the surveys carried out by the Infrared Astronomical Satellite IRAS, the Japanese Akari satellite, and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Ucclia measures between 30.1 and 40.0 kilometers in diameter and its surface has an albedo between 0.05 and 0.14.[5][6][7][9] The Collaborative Asteroid Lightcurve Link derives an albedo of 0.08 and a diameter of 30.3 kilometers.[3]

    References

    1. 1 2 3 4 "JPL Small-Body Database Browser: 1276 Ucclia (1933 BA)" (2016-11-08 last obs.). Jet Propulsion Laboratory. Retrieved 23 January 2017.
    2. 1 2 3 Schmadel, Lutz D. (2007). "(1276) Ucclia". Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 105. doi:10.1007/978-3-540-29925-7_1277. ISBN 978-3-540-00238-3.
    3. 1 2 3 4 5 6 "LCDB Data for (1276) Ucclia". Asteroid Lightcurve Database (LCDB). Retrieved 20 April 2016.
    4. 1 2 "Asteroid 1276 Ucclia – Nesvorny HCM Asteroid Families V3.0". Small Bodies Data Ferret. Retrieved 26 October 2019.
    5. 1 2 3 4 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. (online, AcuA catalog p. 153)
    6. 1 2 3 4 Tedesco, E. F.; Noah, P. V.; Noah, M.; Price, S. D. (October 2004). "IRAS Minor Planet Survey V6.0". NASA Planetary Data System. 12: IRAS-A-FPA-3-RDR-IMPS-V6.0. Bibcode:2004PDSS...12.....T. Retrieved 22 October 2019.
    7. 1 2 3 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. arXiv:1209.5794. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. S2CID 46350317. Retrieved 18 May 2016.
    8. 1 2 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. arXiv:1406.6645. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. S2CID 119293330. Retrieved 23 January 2017.
    9. 1 2 3 4 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. S2CID 35447010. Retrieved 18 May 2016.
    10. ↑ Angeli, C. A.; Guimarães, T. A.; Lazzaro, D.; Duffard, R.; Fernández, S.; Florczak, M.; et al. (April 2001). "Rotation Periods for Small Main-Belt Asteroids From CCD Photometry". The Astronomical Journal. 121 (4): 2245–2252. Bibcode:2001AJ....121.2245A. doi:10.1086/319936. ISSN 0004-6256.
    11. 1 2 Galad, Adrian; Kornos, Leonard; Vilagi, Jozef (January 2010). "An Ensemble of Lightcurves from Modra" (PDF). Minor Planet Bulletin. 37 (1): 9–15. Bibcode:2010MPBu...37....9G. ISSN 1052-8091. Archived from the original (PDF) on 19 August 2020. Retrieved 16 March 2020.
    12. ↑ 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. arXiv:1309.4296. Bibcode:2013A&A...559A.134H. doi:10.1051/0004-6361/201321993. S2CID 119214895. Retrieved 18 May 2016.
    13. 1 2 Behrend, Raoul. "Asteroids and comets rotation curves – (1276) Ucclia". Geneva Observatory. Retrieved 20 April 2016.
    14. ↑ 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. arXiv:1506.00762. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. S2CID 53493339. Retrieved 18 May 2016.
    15. 1 2 "1276 Ucclia (1933 BA)". Minor Planet Center. Retrieved 20 April 2016.
    16. ↑ Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families". Asteroids IV. pp. 297–321. arXiv:1502.01628. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. ISBN 9780816532131. S2CID 119280014.
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