T Coronae Borealis ( T CrB ), nicknamed the Blaze Star , is a binary star and a recurrent nova about 3,000 light-years away in the constellation Corona Borealis . It was first discovered in outburst in 1866 by John Birmingham , though it had been observed earlier as a 10th magnitude star. It may have been observed in 1217 and in 1787 as well.
6-422: Blaze Star may refer to: T Coronae Borealis , a recurring nova in the constellation Corona Borealis Blaze Starr (1932–2015), American stripper and burlesque performer Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Blaze Star . If an internal link led you here, you may wish to change
12-414: Is near the limit of typical binoculars. Well documented outbursts have been seen twice, reaching magnitude 2.0 on May 12, 1866 and magnitude 3.0 on February 9, 1946, though a more recent paper shows the 1866 outburst with a possible peak range of magnitude 2.5 ± 0.5. Even when at peak magnitude of 2.5, this recurrent nova is dimmer than about 120 stars in the night sky. It is sometimes nicknamed
18-456: The Sky & Telescope website reported a sustained brightening since February 2015 from magnitude 10.5 to about 9.2. A similar event was reported in 1938, followed by another outburst in 1946. By June 2018, the star had dimmed slightly but still remained at an unusually high level of activity. By mid-2023, it faded by 0.35 magnitude; the lowest brightness seen since 2016. A similar dimming occurred in
24-466: The Blaze Star . T CrB is a binary system containing a large cool component and a smaller hot component. The cool component is a red giant that transfers material to the hot component. The hot component is a white dwarf surrounded by an accretion disc , all hidden inside a dense cloud of material from the red giant. When the system is quiescent, the red giant dominates the visible light output and
30-422: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Blaze_Star&oldid=1251471497 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages T Coronae Borealis T CrB normally has a magnitude of about 10, which
36-487: The system appears as an M3 giant. The hot component contributes some emission and dominates the ultraviolet output. During outbursts, the transfer of material to the hot component increases greatly, the hot component expands, and the luminosity of the system increases. The two components of the system orbit each other about every 228 days. The orbit is almost circular and is inclined at an angle of 67°. The stars are separated by 0.54 AU . On 20 April 2016,
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