CCD data acquisition system installed on the spectrograph at the Norikura Solar Observatory.
Abstract
A new data acquisition system is installed on the 25-cm coudé-type coronagraph at the Norikura Solar Observatory. Three CCD cameras (2/3 inch, 512×480 pixels) are mounted on the spectrograph; one at the short focal length exit window and the other two at the long focal length exit window. Fields of view along the entrance slit of the spectrograph are 9'15″ 2'22″and 3'00″ respectively. Spectral images are digitized and integrated on the image processing unit. The new system has made possible (1) the observations in the near-infrared wavelength, (2) high accuracy in data compared to photographic observations, and (3) the analyses of large amounts of spectral data.
- Publication:
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Report of the National Astronomical Observatory of Japan
- Pub Date:
- 1990
- Bibcode:
- 1990RNAOJ...1...13H
- Keywords:
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- CCD Cameras