Photometric Studies of Asteroids.IV. The Light-Curves of Ceres, Hebe, Flora, and Kalliope.

Abstract

view Abstract Citations (43) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Photometric Studies of Asteroids.IV. The Light-Curves of Ceres, Hebe, Flora, and Kalliope. Ahmad, Imam I. Abstract The variation of the magnitudes of four asteroids-Ceres, Hebe, Flora, and Kalliope-has been investigated with the photoelectric photometers on the 82-inch reflector at the McDonald Observatory and on the I24nch refractor of the Yerkes Observatory. The magnitude of Flora was nearly constant at the epoch of observation; for the other three asteroids the light varied, and the period of variation was determined. Ceres showed a range of 0.04 mag., with a period of 9 7; Hebe a range of 0.16 mag. and a period of Kalliope a range of 0.14 mag. and a period of 8. The latter is the shortest period that has been definitely established for an asteroid. All three asteroids show two maxima and minima. Hebe is the only asteroid observed by us over a long enough interval to establish the phase factor; the value is 0.04S mag$degree. Publication: The Astrophysical Journal Pub Date: November 1954 DOI: 10.1086/145943 Bibcode: 1954ApJ...120..551A full text sources ADS | data products GCPD (1) Related Materials (12) Part 1: 1954ApJ...120..200G Part 2: 1954ApJ...120..529G Part 3: 1954ApJ...120..547S Part 5: 1956ApJ...123..331G Part 6: 1957ApJ...125..550G Part 7: 1958ApJ...127..253V Part 8: 1960PGLO...37...53G Part 9: 1960ApJ...132..232G Part 10: 1960ApJ...132..915G Part 11: 1962ApJ...135..906G Part 12: 1962PGLO...46..906G Part 13: 1963PGLO...53.1279W