On the Interstellar Line Intensities as a Criterion of Distance By P. J. van Rhijn von Rhyn, Pieter Johannes van 1886-

“… Publications of the astronomical Laboratory at Groningen …”

The Luminosity Law and Density Distribution of the O and early B Stars By P. J. van Rhijn von Rhyn, Pieter Johannes van 1886-

“… Publications of the astronomical Laboratory at Groningen …”

The elements of the eclipsing binaries brighter than photographic Magnitude 8.50 at maximum By L. Plaut von Plaut, L.

“… Publications of the astronomical Laboratory at Groningen …”

On the Number of stars of each photographic magnitude in different galactic latitudes by Dr. P. J. van Rhijn von Rhyn, Pieter Johannes van 1886-

“… Publications of the Astronomical Laboratory at Groningen …”

The proper Motions of the stars in and near the Praesepe-cluster, derived from photographic plates taken at Potsdam von Rhyn, Pieter Johannes van 1886-

“… Publications of the Astronomical Laboratory at Groningen …”

On the Brightness of the sky at night and the total amount of starlight von Rhyn, Pieter Johannes van 1886-

“… Publications of the Astronomical Laboratory at Groningen …”

The proper motions of 3714 stars derived from plates taken at the observatories of Helsingfors and Cape of Good Hope, by J. C. Kapteyn with the cooperation of H. Weersma von Weersma, Herman Albertus 1877-1961

“… Publications of the Astronomical Laboratory at Groningen …”

The Parallax of the Hyades, derived from photographic plates prepared by Prof. Anders Donner at Helsingfors, and Prof. F. Küstner at Bonn, measured and discussed by Prof. J[acobus]... von Kapteyn, Jacobus C. 1851-1922

“… Publications of the Astronomical Laboratory at Groningen …”

A determination of the apex of the solar motion according to the method of Bravais von Weersma, Herman Albertus 1877-1961

“… Publications of the Astronomical Laboratory at Groningen …”

Parallaxes of the clusters h and [Kappa] Persei, of Groombridge 745,61 Cygni, and surrounding stars, contained on photographs prepared by Prof. A. Donner, measured and discussed by... von Kapteyn, Jacobus C. 1851-1922

“… Publications of the astronomical laboratory at Groningen …”

The proper Motions of the Hyades, derived from plates prepared by Prof. Anders Donner, measured and discussed by Prof. J[acobus] C[ornelius] Kapteyn, Dir., and W. de Sitter, Sc. D. von Kapteyn, Jacobus C. 1851-1922

“… Publications of the Astronomical laboratory at Groningen …”

The proper motions of 66 stars of the Hyades derived from the observations of 34 catalogues between 1755 and 1900 von Weersma, Herman Albertus 1877-1961

“… Publications of the Astronomical laboratory at Groningen …”

List of parallax determinations von Kapteyn, Jacobus C. 1851-1922, Weersma, Herman Albertus 1877-1961

“… Publications of the astronomical laboratory at Groningen …”

On the Brightness of the sky and total amount of starlight by L. Yntema von Yntema, L.

“… Publications of the Astronomical Laboratory at Groningen …”

The Parallax of the Hyades, derived from photographic plates prepared by Prof. Anders Donner at Helsingfors, and Prof. F. Küstner at Bonn, measured and discussed by Prof. J[acobus]... von Kapteyn, Jacobus C. 1851-1922

“… Publications of the Astronomical Laboratory at Groningen …”

On the Libration of the three inner large satellites of Jupiter von Sitter, Willem de 1872-1934

“… Publications of the Astronomical Laboratory at Groningen …”

On the luminosity of the fixed stars by J[acobus] C[ornelius] Kapteyn von Kapteyn, Jacobus C. 1851-1922

“… Publications of the astronomical laboratory at Groningen …”

A Study of the Scorpio-Centaurus Cluster By A. Blaauw von Blaauw, A.

“… Publications of the astronomical Laboratory at Groningen, Nr. 52 …”

The proper motions of 3714 stars derived from plates taken at the observatories of Helsingfors and Cape of Good Hope, by J. C. Kapteyn with the cooperation of H. Weersma von Kapteyn, Jacobus C. 1851-1922

“… Publications of the Astronomical Laboratory at Groningen. No. 25 …”

The parallax of the Hyades, derived from photographic plates prepared by Anders Donner and F[iedrich] Küstner, measured and discussed by J[acobus] C[ornelius] Kapteyn and W. de Sit... von Donner, Anders

“… Publications of the astronomical Laboratory at Groningen. No 23 …”