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

Details 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 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

Jul 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26as...53...71s&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 53, July 1983, p. 71-75. Research supported by the Steiermae

Astronomy and Astrophysics

Astronomy

2

Asteroids, Astronomical Photometry, Light Curve, Planetary Rotation, Astronomical Observatories, Electrophotometry, Asteroids, C Asteroids, 146 Lucina, 410 Chloris, S Asteroids, Data, 152 Atala, 631 Phillippina, Rotation, Periods, Lightcurves, Astronomy, Photoelectric Observations, Photometry, Amplitude, Magnitude, Color

Scientific paper

Photoelectric observations are presented for four asteroids. 146 Lucina and 410 Chloris (larger C-type asteroids) were observed in Sep. 1979 at CTIO, the rotation periods are P = 18h54 and P = 32h.50, respectively, both derived by Harris and Young (1982), using my observations prior to publication.
152 Atala was observed in Nov. 1981 at OHP, a rotation period of P - 5h.282 ± 0h.004 was derived with a lightcurve amplitude of 0m.50. 631 Philippina was observed in Feb. 1981 at ESO, and a period of P = 5h.92 ± 0m.01 could be derived with a maximum lightcurve amplitude of 0m.20. 152 Atala and 631 Philippina are both small-sized S-type asteroids and rotate much faster.
Colors and magnitudes were measured for the asteroids, excluding 152 Atala for 631 Philippina colors were obtained frequently over all rotational cycles with no variation exceeding the scatter.

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