Algol light curve
Astronomy
Photometry
Eclipsing binary star
Joel Stebbins used the selenium cell photometer to study the known variable star Algol. The improved accuracy of the photometer revealed the second minimum and the limb darkening.
Astrophysical Journal
Stebbins, Joel. (1910) The measurement of the light of stars with a selenium photometer, with an application to the variations of Algol. Astrophysical Journal, 32, 185-214.
http://adsabs.harvard.edu/abs/1910ApJ....32..185S
1910
English
document
University of Illinois Observatory, Urbana, Illinois
Moon's light with a selenium photometer
astronomy, photometer
Graph of the moon's brightness with phase from the first application of the selenium cell photometer.
Brown, F.C., & Stebbins, J. (1907). A determination of the Moon’s light with a selenium photometer. Astrophysical Journal. 26, 326-340.
Astrophysical Journal
1907
English
University of Illinois Observatory, Urbana, Illinois