Abstract
view Abstract Citations (1) References Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Stark effect as a means of determining comparative absolute magnitudes. Struve, O. Abstract The ratio of intensity of the forbidden helium line X ~7o to that of the permitted line X 4472 ~S used for the determination of relative absolute magnitudes of B-type stars. The total range of absolute magnitude within a single spectral subdivision is of the order of 3 mag. The star 67 Ophiuchi, of type B5p, is found to be highly luminous; its abso- lute magnitude is 3.0 mag. brighter than that of 88 `y Pegasi, of type B2, and its dis- tance is estimated at 600 parsecs. This is verified by the fact that 67 Ophiuchi has a fairly strong interstellar line of Ca~ Publication: The Astrophysical Journal Pub Date: November 1929 DOI: 10.1086/143221 Bibcode: 1929ApJ....70..237S full text sources ADS |
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