321 Florentina

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321 Florentina
321Florentina (Lightcurve Inversion).png
A three-dimensional model of 321 Florentina based on its light curve
Discovered byJohann Palisa
Discovery date15 October 1891
MPC designation(321) Florentina
Main belt (Koronis)
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc118.15 yr (43153 d)
Aphelion3.01879 AU (451.605 Gm)
Perihelion2.7543 AU (412.04 Gm)
2.88657 AU (431.825 Gm)
4.90 yr (1791.3 d)
0° 12m 3.492s / day
Physical characteristics
Dimensions27.23±1.5 km
2.871 h (0.1196 d)

Florentina (minor planet designation: 321 Florentina) is a typical Main belt asteroid.

It was discovered by Johann Palisa on 15 October 1891 in Vienna. He named the asteroid for his daughter, Florentine.[2] Between 1874 and 1923, Palisa discovered a total of 122 asteroids.

A group of astronomers, including Lucy d'Escoffier Crespo da Silva, contributed data toward the discovery of spin-vector alignments in the Koronis family, which includes (321) Florentina. This was based on observations made between 1998 through 2000. The collaborative work resulted in the creation of 61 new individual rotation lightcurves to augment previous published observations.[3]


  1. ^ "321 Florentina". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
  2. ^ Schmadel, Lutz D. (2007). "(321) Florentina". Dictionary of Minor Planet Names – (321) Florentina. Springer Berlin Heidelberg. p. 42. doi:10.1007/978-3-540-29925-7_322. ISBN 978-3-540-00238-3.
  3. ^ Slivan, S. M., Binzel, R. P., Crespo da Silva, L. D., Kaasalainen, M., Lyndaker, M. M., Krco, M.: “Spin vectors in the Koronis family: comprehensive results from two independent analyses of 213 rotation lightcurves,”Icarus, 162, 2003, pp. 285-307.

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