W. Liller, Center for Astrophysics, Harvard and Smithsonian Observatories, reports that L. J. Eachus has made a careful survey of this eruptive BL Lac-type object (cf. IAUC 2867), using plates in the Harvard collection. She finds only one definite outburst, in 1939-40, when the star reached B ~ 15.8 and remained brighter than B = 17 for more than 100 days but less than a year.
International Astronomical Union Circular
- Pub Date:
- December 1975