1276 Ucclia

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1276 Ucclia
Discovery [1]
Discovered by E. Delporte
Discovery site Uccle Obs.
Discovery date 24 January 1933
MPC designation (1276) Ucclia
Named after
Uccle (city and observatory)[2]
1933 BA · 1963 KF
main-belt · (outer)[3]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc 83.79 yr (30,604 days)
Aphelion 3.4772 AU
Perihelion 2.8781 AU
3.1776 AU
Eccentricity 0.0943
5.66 yr (2,069 days)
0° 10m 26.4s / day
Inclination 23.274°
Physical characteristics
Dimensions 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]
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]
0.0837 (derived)[3]
0.1303±0.019 (IRAS:8)[6]
10.40[5][6] · 10.8[7][9] · 10.9[1][3] · 10.92±0.30[14]

1276 Ucclia, provisional designation 1933 BA, is a carbonaceous Alauda asteroid from the outer region of the asteroid belt, approximately 31 kilometers 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[edit]

Ucclia is a member of the Alauda family (902),[4] a large family of typically bright carbonaceous asteroids and 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]

Physical characteristics[edit]

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]

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]


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


  1. ^ a b c d "JPL Small-Body Database Browser: 1276 Ucclia (1933 BA)" (2016-11-08 last obs.). Jet Propulsion Laboratory. Retrieved 23 January 2017. 
  2. ^ a b c Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (1276) Ucclia. Springer Berlin Heidelberg. p. 105. ISBN 978-3-540-00238-3. Retrieved 20 April 2016. 
  3. ^ a b c d e f "LCDB Data for (1276) Ucclia". Asteroid Lightcurve Database (LCDB). Retrieved 20 April 2016. 
  4. ^ a b "Small Bodies Data Ferret". Nesvorny HCM Asteroid Families V3.0. Retrieved 7 November 2017. 
  5. ^ a b c d 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 20 April 2016. 
  6. ^ a b c d 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 20 April 2016. 
  7. ^ a b c d 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:1209.5794Freely accessible. Bibcode:2012ApJ...759L...8M. doi:10.1088/2041-8205/759/1/L8. Retrieved 18 May 2016. 
  8. ^ a b 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:1406.6645Freely accessible. Bibcode:2014ApJ...791..121M. doi:10.1088/0004-637X/791/2/121. Retrieved 23 January 2017. 
  9. ^ a b c d 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:1109.6407Freely accessible. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 18 May 2016. 
  10. ^ Angeli, C. A.; Guimarã; es, T. A.; Lazzaro, D.; Duffard, R.; Fernández, S.; 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. Retrieved 18 May 2016. 
  11. ^ a b Galad, Adrian; Kornos, Leonard; Vilagi, Jozef (January 2010). "An Ensemble of Lightcurves from Modra". The Minor Planet Bulletin. 37 (1): 9–15. Bibcode:2010MPBu...37....9G. ISSN 1052-8091. Retrieved 18 May 2016. 
  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:1309.4296Freely accessible. Bibcode:2013A&A...559A.134H. doi:10.1051/0004-6361/201321993. Retrieved 18 May 2016. 
  13. ^ a b 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:1506.00762Freely accessible. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 18 May 2016. 
  15. ^ a b "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" (PDF). Asteroids IV: 297–321. arXiv:1502.01628Freely accessible. Bibcode:2015aste.book..297N. doi:10.2458/azu_uapress_9780816532131-ch016. Retrieved 7 November 2017. 

External links[edit]