On the Existence of a Third Component in the System 70 Ophiuchi.
Abstract
Photographic observations of 70 Ophiuchi at the Leander McCormick Observatory give some anom- alies that may be explained by the assumption of a third body. The photographic material consists of 33 grating plates (1932-1942) and 64 parallax plates (1914-1917, 1928-1932, 1939). The perturbations have a period of about 17 years and an amplitude, in X and Y, of about O'015. The mass of the invisible companion amounts to 0.01 solar units
- Publication:
-
The Astrophysical Journal
- Pub Date:
- January 1943
- DOI:
- 10.1086/144489
- Bibcode:
- 1943ApJ....97...41R