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(1 - 12 of 12)
Photographic magnitudes of 658 stars from plates taken mainly by W. H. van den Bos with the 33-cm Leiden refractor
Hertzsprung, E. 1923
Photographic magnitudes of 658 stars from plates taken mainly by W. H. van den Bos with the 33-cm Leiden refractor
Article / Letter to editor
open access
Periodic solutions in the restricted asteroid problem in the vicinity of a commensurability of the form (p+1)/p
Woltjer Jr., J. 1923
Periodic solutions in the restricted asteroid problem in the vicinity of a commensurability of the form (p+1)/p
Article / Letter to editor
open access
The orbit of Ref. Cat. 17<SUP>h</SUP>31 = Brisbane = Russell 297
Bos, W.H. van den 1923
The orbit of Ref. Cat. 17h31 = Brisbane = Russell 297
Article / Letter to editor
open access
Note on some quantities connected with the precessional motion
Weeder, J. 1923
Note on some quantities connected with the precessional motion
Article / Letter to editor
open access
Measures of double stars on photographic plates taken by W. J. Luyten
Bos, W.H. van den 1923
Measures of double stars on photographic plates taken by W. J. Luyten
Article / Letter to editor
open access
The orbit of Bu G. C. 3291 = β895 = Σ888 AB
Bos, W.H. van den 1923
The orbit of Bu G. C. 3291 = β895 = Σ888 AB
Article / Letter to editor
open access
Remarks on the period of U Leporis
Hertzsprung, E. 1923
Remarks on the period of U Leporis
Article / Letter to editor
open access
On the magnitude equation of Osthoff's estimates of star colours
Hertzsprung, E. 1923
On the magnitude equation of Osthoff's estimates of star colours
Article / Letter to editor
open access
On the relation between mass and absolute brightness of components of double stars
Hertzsprung, E. 1923
On the relation between mass and absolute brightness of components of double stars
Article / Letter to editor
open access
Note to double star observers
Bos, W.H. van den 1923
Note to double star observers
Article / Letter to editor
open access
On the colours of some stars of spectral class between Oe5 and A3
Hertzsprung, E. 1923
On the colours of some stars of spectral class between Oe5 and A3
Article / Letter to editor
open access
Further remark on the motion of the clusters χ and h Persei
Hertzsprung, E. 1923
Further remark on the motion of the clusters χ and h Persei
Article / Letter to editor
open access