252 Clementina

Main-belt asteroid

252 ClementinaDiscovery

Discovered by| J. Perrotin
Discovery date| 11 October 1885
Designations

MPC designation

| (252) Clementina

Alternative designations

| A885 TB

Minor planet category

| Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc| 130.51 yr (47667 d)
Aphelion| 3.3790 AU (505.49 Gm)
Perihelion| 2.93952 AU (439.746 Gm)

Semi-major axis

| 3.15924 AU (472.616 Gm)
Eccentricity| 0.069548

Orbital period (sidereal)

| 5.62 yr (2051.0 d)

Average orbital speed

| 16.77 km/s

Mean anomaly

| 131.151°

Mean motion

| 0° 10m 31.876s / day
Inclination| 10.044°

Longitude of ascending node

| 202.043°

Argument of perihelion

| 155.886°
Physical characteristics
Dimensions| 69.29±4.4 km

Synodic rotation period

| 10.864 h (0.4527 d)[1][2]

Geometric albedo

| 0.0843±0.012

Absolute magnitude (H)

| 9.7

252 Clementina is a large main belt asteroid that was discovered by French astronomer Henri Joseph Anastase Perrotin on 11 October 1885 in Nice, France.[3] The origin of the name is not known.

Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico, during 2012 gave a light curve with a period of 10.864 ± 0.001 hours and a brightness variation of 0.37 ± 0.02 in magnitude. This result is in agreement with previous studies.[2]

## References

[edit]

1. ^ a b Yeomans, Donald K., "252 Clementina", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
2. ^ a b Pilcher, Frederick (October 2012), "Rotation Period Determinations for 47 Aglaja, 252 Clementina, 611 Valeria, 627 Charis, and 756 Lilliana", Minor Planet Bulletin, vol. 39, pp. 220–222, Bibcode:2012MPBu...39..220P.
3. ^ "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.

## External links

[edit]

* Lightcurve plot of 252 Clementina, Palmer Divide Observatory, B. D. Warner (2007)
* Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
* Dictionary of Minor Planet Names, Google books
* Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
* Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
* 252 Clementina at AstDyS-2, Asteroids—Dynamic Site
* Ephemeris * Observation prediction * Orbital info * Proper elements * Observational info
* 252 Clementina at the JPL Small-Body Database
* Close approach * Discovery * Ephemeris * Orbit viewer * Orbit parameters * Physical parameters

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