| タイトル | The S sub 10 /V/ unit of surface brightness |
| 著者（英） | Weinberg, J. L.; Sparrow, J. G. |
| 著者所属（英） | State Univ. of New York |
| 発行日 | 1976-01-01 |
| 言語 | eng |
| 内容記述 | Some discrepancies in the use of the unit of zodiacal light measurements - S sub 10 (V), which is the equivalent number of tenth magnitude stars of solar spectral type per square degree - are discussed. It is suggested that: (1) the S sub 10 (V) unit be understood to represent 10th magnitude solar (G2V) stars per square degree at mean solar distance, (2) the V refers to the visual color in the UBV system defined by Johnson and Morgan (1953), (3) the apparent solar visual magnitude be taken as -26.73 and the B-V index as .63, (4) the solar spectral irradiance values of Labs and Neckel (1970) be used, and (5) when using Vega as a standard to obtain brightnesses in S sub 10 (V), +.04 be used as its magnitude at all wavelengths and the irradiance values of Hayes and Latham (1975) be used. |
| NASA分類 | GEOPHYSICS |
| レポートNO | 76A43707 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/441925 |
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