Investigations in Proper Motions.
Abstract
By superposing photographs, taken at intervals ranging from ten to twenty-three years, 105 stars showing a decided proper motion were found in 223 fields in which the central stars had a motion of about o'~5 or more annually. Sixteen of these stars are companions of the central stars; for all these the parallax is known. The distances from the central stars range from 100 to 10,000 astronomical units, the absolute photographic magnitudes from + 10.1 to + 14.0 with a maximum frequency at about +12
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1938
- DOI:
- 10.1086/143957
- Bibcode:
- 1938ApJ....88...27V