Details of exhibit
- Exhibition:
- 1900 Forty-fifth Annual Exhibition of the Royal Photographic Society
- Exhibit title:
- Aldebaran
- Exhibitor:
- Royal Observatory
- Section:
- Scientific, Technical and Photo-Mechanical Exhibits
- Exhibit No.:
- 352
- Exhibit No. 2:
- [5]
- Description:
- Taken with occulting shutter. Twenty exposures of about 1/100th sec. each. Exposure 20 secs. for companion stars. Enlarged 10 times from original negative, taken 1899, November 10, with Thompson 26 inch Photographic Refractor. Aperture 26 inches. Focal length 22½ feet. Observer D.E. The diffused image round the shutter is due to the secondary spectrum.
AB Angle 109° Distance 31 Mag. I and 14
AC Angle 34° Distance 117 Mag. I and 11
CD Angle 277° Distance 2 Mag. II and 14 - Exhibit type:
- Photographic equipment and supplies
- Process:
- [Not Listed] ()
- Award:
- none
