Observations of fifty-eight variable stars of long period during the years 1890-1901,
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Cambridge, Mass. :
The Observatory,
1902
|
| Series: | Annals of the Astronomical Observatory of Harvard College
vol. XXXVII, pt. II |
| Subjects: |