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Photometric Analysis of the Solar Corona on 1984 November 22/23

Published online by Cambridge University Press:  12 April 2016

Roland Caron ,
Christian Nitscheim  and
Michel Sarrazin
Roland Caron
Affiliation:
Société Astronomique de France, 3, rue Beethoven, F-75016 Paris, France
Christian Nitscheim
Affiliation:
Institut d’Astrophysique de Paris, 98 bis, Bd. Arago, F-75014 Paris, France
Michel Sarrazin
Affiliation:
Société Astronomique de France, 3, rue Beethoven, F-75016 Paris, France

Extract

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The total solar eclipse of 1984 November 22/23 was observed from a French naval vessel off Noumea (New Caledonia) in the Coral Sea. The observations were made by a team from the S.A.F., led by Serge Koutchmy and Christian Nitschelm of the Institut d’Astrophysique de Paris. The duration of the eclipse was considerably longer off New Caledonia (1 m 39 s) than in Papua-New-Guinea (55 s). However, the observational site – on board a ship well out to sea – greatly restricted the use of long-focal-length instruments that are normally employed. The equipment used to photograph this eclipse therefore was chosen with motion (pitching, rolling, etc.) of the support in mind. Short focal lengths were preferred, although one refractor with a focal length of 1.5 m was used as a trial.

Type
Part III Observations and Results
Information
International Astronomical Union Colloquium , Volume 98: Stargazers: The Contribution of Amateurs to Astronomy , 1988 , pp. 166 - 167
Copyright
Copyright © Springer-Verlag 1988

References

Koutchmy, S. et al.: Astron. Astrophys., 69, 35 Google Scholar
Koutchmy, S., Nitschelm, C., 1984: Astron. Astrophys., 138, 161-3Google Scholar
Koutchmy, S., Stellmacher, G., 1976: Solar Phys., 49, 253 CrossRefGoogle Scholar
Nitschelm, C., Koutchmy, S., 1984: L’Astronomie, 98, 393-9Google Scholar
Nitschelm, C., Sarrazin, M., 1987: L’Astronomie, 101, 207–211; 1984, L’Astronomie, 98, 393-9Google Scholar