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Optical Variations of the Be Star HDE 245770/A 0535+26

Published online by Cambridge University Press:  14 August 2015

A. Guarnieri ,
C. Bartolini ,
A. Piccioni ,
A. Giangrande  and
F. Giovannelli
A. Guarnieri
Affiliation:
Osservatorio Astronomico dell'Università di Bologno
C. Bartolini
Affiliation:
Osservatorio Astronomico dell'Università di Bologno
A. Piccioni
Affiliation:
Osservatorio Astronomico dell'Università di Bologno
A. Giangrande
Affiliation:
Istituto di Astrofisica Spaziale, CNR, Frascati
F. Giovannelli
Affiliation:
Istituto di Astrofisica Spaziale, CNR, Frascati

Abstract

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Results of photoelectric observations of HDE 245770 spreaded over six years are presented. No variations greater than some hundreths of magnitudes are evident in contrast with the ancient light history, which is more complex. A sensible variation of the colour indices is present on a time scale of tens of years. The temporal analysis of these data shows some evidence of orbital periodicity.

Type
I. Photometry
Information
Symposium - International Astronomical Union , Volume 98: Be Stars , 1982 , pp. 69 - 74
Copyright
Copyright © Reidel 1982 

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