On the parallaxes and motion of the brighter galactic helium stars between galactic longitudes 150⁰ and 216⁰
By: by J.C. KIapteyn ...
Series: Contributions from the Mount Wilson Solar Observatory,; no. 147
Published: 1918
Place of publication: [Chicago
Language: eng
Number of pages: 92
Subjects: Parallax -- Stars.; Stars -- Proper motion.
Notes: Cover-title.
At head of title: Carnegie Institution of Washington.
"Reprinted from the Astrophysical Journal, vol. XLVII, 1918."