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321 Florentina

Main-belt asteroid

Field	Value
minorplanet	yes
background	#D6D6D6
name	321 Florentina
image	321Florentina (Lightcurve Inversion).png
caption	A three-dimensional model of 321 Florentina based on its light curve
discoverer	Johann Palisa
discovered	15 October 1891
mpc_name	(321) Florentina
pronounced
mp_category	Main belt (Koronis)
epoch	31 July 2016 (JD 2457600.5)
semimajor	2.88657 AU
perihelion	2.7543 AU
aphelion	3.01879 AU
eccentricity	0.045806
period	1791.3 days
inclination	2.5876°
asc_node	40.224°
arg_peri	37.310°
mean_anomaly	120.99°
dimensions
rotation	2.871 h
abs_magnitude	10.1
albedo
mean_motion	/ day
orbit_ref
observation_arc	118.15 yr (43153 d)
uncertainty	0

321 Florentina is an S-type (stony) main belt asteroid with a diameter of . It was discovered by Johann Palisa on 15 October 1891 in Vienna. He named the asteroid for his daughter, Florentine.{{cite book

This asteroid is a dynamic member of the Koronis family. It is orbiting the Sun at a distance of with an eccentricity (ovalness) of 0.046 and an orbital period of 1791.3 days. The orbital plane is inclined at an angle of 2.59° to the plane of the ecliptic. Photometric data collected during the asteroid opposition of 2011 was used to construct a light curve that displayed a rotation period of . This is consistent with previous rotation estimates.{{cite journal

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.{{cite journal

References

"321 Florentina". [[NASA]]/[[Jet Propulsion Laboratory]].

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koronis-asteroids discoveries-by-johann-palisa named-minor-planets s-type-asteroids-(tholen) s-type-asteroids-(smass) astronomical-objects-discovered-in-1891

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