Variable star 43.1909 Draconis
نویسندگان
چکیده
منابع مشابه
Luminous Red Variable Star
We report photometry and spectroscopy of the evolution of Nova Sagittarii 1994 #1 (V4332 Sagittarii) during outburst. We compare the photometric and spectral evolution of this outburst to known classes of outbursts – including classical novae and outbursts occurring on symbiotic stars – and find this object does not conform to any known class of outburst. The closest match to the behavior of th...
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The two stars that form the subject of this paper are both short-period double-lined eclipsing binaries. They have non-circular orbits despite their short periods, both of which are very close to integral numbers of sidereal days (10.0015 and 9.0127 sidereal days respectively), making it difficult to achieve uniform phase coverage of the orbits from a single site in the short term. Although the...
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We present the results of an extensive campaign of coordinated X-ray (ROSAT) and UV (IUE) observations of the symbiotic star AG Dra during a long period of quiescence followed recently by a remarkable phase of activity characterized by two optical outbursts. Themajor optical outburst in June 1994 and the secondary outburst in July 1995 were covered by a number of target of opportunity observati...
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ژورنال
عنوان ژورنال: Astronomische Nachrichten
سال: 1909
ISSN: 0004-6337,1521-3994
DOI: 10.1002/asna.19091831310