631 Philippina

631 Philippina
A three-dimensional model of 631 Philippina based on its light curve
Discovery
Discovered by August Kopff
Discovery site Heidelberg
Discovery date 21 March 1907
Designations
MPC designation (631) Philippina
1907 YJ
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 109.08 yr (39842 d)
Aphelion 3.0226 AU (452.17 Gm)
Perihelion 2.5641 AU (383.58 Gm)
2.7933 AU (417.87 Gm)
Eccentricity 0.082065
4.67 yr (1705.2 d)
217.70°
0° 12m 39.996s / day
Inclination 18.917°
224.709°
277.857°
Physical characteristics
Mean radius
 28.825±0.6 km
5.899 h (0.2458 d)
0.1760±0.008
8.70

    631 Philippina is a minor planet orbiting the Sun that was discovered by German astronomer August Kopff on March 21, 1907.

    Photometric of this asteroid made in 1981 gave a light curve with a period of 5.92 ± 0.01 hours with a brightness variation of 0.20 in magnitude.[2] In 2007 lightcurve data showed that it rotates every 5.899 ± 0.001 hours.[3]

    See also

    References

    1. ↑ Yeomans, Donald K., "631 Philippina", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 5 May 2016.
    2. ↑ Schober, H. J. (July 1983), "The large C-type asteroids 146 Lucina and 410 Chloris, and the small S-type asteroids 152 Atala and 631 Philippina - Rotation periods and lightcurves", Astronomy and Astrophysics Supplement Series, 53, pp. 71–75, Bibcode:1983A&AS...53...71S.
    3. ↑ Buchheim, Robert K. - Lightcurves for 122 Gerda, 217 Eudora, 631 Phillipina, 670 Ottegebe, and 972 Cohnia (2007)


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