A planetary system for Gamma Cephei?

Details A planetary system for Gamma Cephei? A planetary system for Gamma Cephei?

Jul 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jbis...42..335l&link_type=abstract

British Interplanetary Society, Journal (ISSN 0007-084X), vol. 42, July 1989, p. 335, 336.

Astronomy and Astrophysics

Astronomy

Cepheus Constellation, Extrasolar Planets, Planetary Systems, Stellar Motions, Radial Velocity, Sun, Velocity Measurement, Planets, Popular, Diagrams, Luminosity, Mass, Astronomy, Equipment, Size, Theoretical Studies, Orbits, Distance, Temperature, Comparisons, Radial Velocity

Scientific paper

Gamma Cephei, an orange-yellow star with a visual magnitude of +3.2, is studied. Its absolute magnitude is 2.2, compared with 4.84 for the sun; the star is 11.5 times brighter than the sun and has a mass twice as great. It is believed that the systematic cyclic variations of radial velocity with periods longer than 5 yrs imply companion masses of 1.5-2.0 x Jupiter, namely, planetary masses.

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