14 Irene - A puzzling asteroid

Details 14 Irene - A puzzling asteroid 14 Irene - A puzzling asteroid

Jul 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a...100..326s&link_type=abstract

Astronomy and Astrophysics, vol. 100, no. 2, July 1981, p. 326-329. Research supported by the Jenny and Antti Wihuri Foundation

Astronomy and Astrophysics

Astrophysics

2

Asteroids, Astronomical Photometry, Electrophotometers, Light Curve, Orbital Elements, Solar Orbits, Asteroids, 14 Irene Asteroid, Absolute Magnitude, Analysis, Light Curve, Observations, Rotation, Physical Properties, Hypotheses, Photometry, Photoelectric Observations, Period, Amplitude, Data

Scientific paper

Photoelectric observations of the asteroid 14 Irene made during three apparitions are analyzed to derive rotational properties. Some ambiguous results for the rotational periods are obtained due to the small amplitude of the light curve. Two hypotheses are formed, which are given the same probability and value the synodic period as P(1) equals 9.35 h and P(2) equals 18.71 h. Total amplitude is found to reach a maximum of 0.10 mag at 90 deg of aspect, and the magnitude-phase relation is obtained. All aspect data, magnitudes and colors of existing observations are presented, and the hypotheses are found to satisfy these previous results.

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