Glass positive:- Halley's Comet
Glass positive:- Halley's Comet, H. Knox-Shaw, Helwan Observatory, Egypt, 1910, May 21d 5h 47m, 30-inch Reflector, focal length, 135 in, exposure, 1 min, 6 1/2" x 8 1/2"
Details
- Category:
- Astronomy
- Object Number:
- 1929-734
- Materials:
- glass
- type:
- black-and-white transparencies, astrophotographs and comets
- credit:
- Science Museum (Great Britain)