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- R Coronae Borealis ( R CrB ) is the prototype star.
- Modelling the pulsations suggests that the mass of R Coronae Borealis is.
- The evolutionary status of yellow supergiant R Coronae Borealis variables is unclear.
- In August 2007, R Coronae Borealis began a fade to an unprecedented minimum.
- It is an R Coronae Borealis variable and periodically decreases in brightness by several magnitudes.
- In late 2014, R Coronae Borealis brightened quickly to 7th magnitude but then began to fade again.
- The distance of R Coronae Borealis is not known exactly, but is estimated at 1.6 kiloparsecs.
- R Coronae Borealis variables are often yellow supergiants, but their variability is produced by a different mechanism from the Cepheids.
- R Coronae Borealis variables are typically supergiant stars in the universal abundance of hydrogen is about 3 to 1 relative to helium.
- Initially thought to be an R Coronae Borealis variable, its true nature as an eclipsing binary became clear in the 1940s.
- It's difficult to see r coronae borealis in a sentence .
- In 1999, U Aqr was proposed to be a Thorne-Zytkow object, instead of being a simple R Coronae Borealis variable.
- It is one of the three brightest R Coronae Borealis stars visible to Earth observers, along with R Coronae Borealis and V854 Centauri.
- It is one of the three brightest R Coronae Borealis stars visible to Earth observers, along with R Coronae Borealis and V854 Centauri.
- However, R Coronae Borealis then faded again to near 15th magnitude and as of August 2014 it had been below 10th magnitude for 7 years.
- The spectrum at maximum indicates that hydrogen in R Coronae Borealis is strongly depleted, helium is the dominant element, and carbon is strongly enhanced.
- If a neutron star and a white dwarf merge, this could form a Thorne { ytkow object with the properties of an R Coronae Borealis variable.
- At irregular intervals a few years or decades apart R Coronae Borealis fades from its normal brightness near 6th magnitude for a period of months or sometimes years.
- The spectral type at the time of the outbursts was R0, a cool hydrogen-deficient carbon star similar to some R Coronae Borealis ( RCB ) stars.
- "' R Coronae Borealis "'is a peculiar low-mass yellow supergiant star, and is the prototype of the rare magnitudes at irregular intervals.
- It is an R Coronae Borealis variable star that has a base apparent magnitude of around 11.85, with irregular dimmings down to below magnitude 18.0.
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