✦ LIBER ✦
A simple and rapid method of detecting changes on celestial photographs due to motion or variability of the celestial bodies
✍ Scribed by E. E. Barnard
- Publisher
- John Wiley and Sons
- Year
- 1892
- Tongue
- English
- Weight
- 107 KB
- Volume
- 130
- Category
- Article
- ISSN
- 0004-6337
No coin nor oath required. For personal study only.