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Photographic magnitudes of 201 stars at 2600 Å

Published online by Cambridge University Press:  14 August 2015

Jean-Pierre Sivan  and
Maurice Viton
Jean-Pierre Sivan
Affiliation:
Laboratoire d'Astronomie Spatiale du CNRS et Observatoire de Marseille, France
Maurice Viton
Affiliation:
Laboratoire d'Astronomie Spatiale du CNRS et Observatoire de Marseille, France

Abstract

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The magnitudes of 201 stars at 2600 Å (1000 Å passband) were derived from two plates of the winter Milky Way obtained with a large field camera. A preliminary investigation of the interstellar reddening allowed us to plot a color-spectral type diagram. Stars of type O seem to be brighter than predicted.

Résumé

Résumé

Les magnitudes de 201 étoiles à 2600 Å (longueur de la bande passante: 1000 Å) ont été obtenues grâce à deux photographies de la Voie Lactée d'hiver données par une caméra à grand champ. Une estimation préliminaire du rougissement interstellaire a permis de tracer un diagramme couleur-type spectral. Il semble que les étoiles O sont plus brillantes que prévu à 2600 Å.

Type
Part I: Stellar Fluxes
Information
Symposium - International Astronomical Union , Volume 36: Ultraviolet Stellar Spectra and Related Ground-Based Observations , 1970 , pp. 120 - 129
Copyright
Copyright © Reidel 1970 

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