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5951 Alicemonet, provisional designation 1986 TZ1, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 7 October 1986, by American astronomer Edward Bowell at Anderson Mesa Station of the Lowell Observatory in Flagstaff, Arizona.[8] The asteroid was named after American astronomer Alice Monet.[2]

5951 Alicemonet
Discovery [1]
Discovered byE. Bowell
Discovery siteAnderson Mesa Stn.
Discovery date7 October 1986
MPC designation(5951) Alicemonet
Named after
Alice Monet
(American astronomer)[2]
1986 TZ1 · 1973 SJ5
1983 XE1
main-belt · Flora[3]
Orbital characteristics[1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc65.34 yr (23,867 days)
Aphelion2.6774 AU
Perihelion1.7183 AU
2.1979 AU
3.26 yr (1,190 days)
0° 18m 9s / day
Earth MOID0.7287 AU
Physical characteristics
5.93 km (calculated)[3]
5.990±0.053 km[5]
3.8871±0.0005 h[6]
0.24 (assumed)[3]
13.2[1] · 13.1[5] · 13.19±0.17[7] · 13.3[3]


Orbit and classificationEdit

Alicemonet is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 1.7–2.7 AU once every 3 years and 3 months (1,190 days). Its orbit has an eccentricity of 0.22 and an inclination of 5° with respect to the ecliptic.[1]

A first precovery was obtained at Palomar Observatory in 1952, extending the body's observation arc by 34 years prior to its official discovery observation at Anderson Mesa.[8]

Physical characteristicsEdit


In September 2012, a rotational lightcurve of Alicemonet was obtained using the SARA telescope at Cerro Tololo, Chile.[6] The photometric observations gave a well-defined rotation period of 3.8871 hours with a brightness variation of 0.46 magnitude (U=3).[6]

Diameter and albedoEdit

According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Alicemonet measures between 5.89 and 5.99 kilometers in diameter and its surface has an albedo of 0.284 and 0.293, respectively.[4][5]

The Collaborative Asteroid Lightcurve Link assumes a stony albedo of 0.24 – derived from 8 Flora, the largest member and namesake of this orbital family – and calculates a diameter of 5.9 kilometers with an absolute magnitude of 13.3.[3]


This minor planet was named after American astronomer Alice K. B. Monet (born 1954) at the United States Naval Observatory Flagstaff Station and former chair of the Division on Dynamical Astronomy of the AAS. She contributed to the NEAR Shoemaker and Galileo Mission and is known for her numerous astrometric observations.[2] The approved naming citation was published by the Minor Planet Center on 1 July 1996 (M.P.C. 27460).[9]


  1. ^ a b c d "JPL Small-Body Database Browser: 5951 Alicemonet (1986 TZ1)" (2017-06-05 last obs.). Jet Propulsion Laboratory. Retrieved 21 June 2017.
  2. ^ a b c Schmadel, Lutz D. (2007). "(5951) Alicemonet". Dictionary of Minor Planet Names – (5951) Alicemonet. Springer Berlin Heidelberg. p. 500. doi:10.1007/978-3-540-29925-7_5552. ISBN 978-3-540-00238-3.
  3. ^ a b c d e f "LCDB Data for (5951) Alicemonet". Asteroid Lightcurve Database (LCDB). Retrieved 12 May 2016.
  4. ^ a b c 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. Retrieved 5 December 2016.
  5. ^ 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:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved 12 May 2016.
  6. ^ a b c Bin, Li; Zhao, Haibin; Hand, Xianming L.; Liu, Wenjuan; Sun, Luming; Shi, Jingjing; Gao, Shan; Zhou, Hongyan (January 2013). "Photometric Observation of 3024 Hainan, 3920 Aubignan, and 5951 Alicemonet". The Minor Planet Bulletin. 40 (1): 43–44. Bibcode:2013MPBu...40...43L. ISSN 1052-8091. Retrieved 21 December 2015.
  7. ^ 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. Retrieved 12 May 2016.
  8. ^ a b "5951 Alicemonet (1986 TZ1)". Minor Planet Center. Retrieved 12 May 2016.
  9. ^ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 12 May 2016.

External linksEdit