Astronomy and Astrophysics – Astronomy
Scientist
Astronomy and Astrophysics
Astronomy
Scientist
Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden, The Netherlands
A comparison of the angular dimensions of the globular clusters M 3 and M 13
A study of the variable stars in Messier 4 (prepared for publication by P. Th. Oosterhoff)
Measures of the magnitude of α Ursae Minoris on plates taken mainly by N. W. Doorn, with the "moving camera" (Errata: 4 V, 6 140)
Photo-visual photometry of stars up to 8.0th magnitude north of +80o of declination (Dutch Title: Fotovisueele fotometri van sterren tot 8<SUP>m</SUP>0 benoorden +80<SUP>o</SUP> declinatie)
Photographic magnitudes of bright stars near the North Pole (Errata: 6 224)
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