R Coronae Borealis star

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R Coronae Borealis star [¦är kə¦rō‚nē ‚bȯr·ē′al·əs ‚stär]

(astrophysics)

A rare type of irregular variable star which has long periods of maximum brightness followed by a sudden, unpredictable reduction in brightness of several magnitudes, and a slower, sometimes erratic return to the original brightness.

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No references found			The stellar classes discussed in detail at the conference include R Coronae Borealis stars, extreme helium stars, Wolf-Rayet central stars of planetary nebulae, white dwarfs, and helium-rich subdwarf O and B stars. Hydrogen-deficient stars; proceedings by SciTech Book News			Quraysh qurra Qusayr, Al Qutb Qutb Minar Qutb, Sayyid Quttinirpaaq National Park Quty quux qux Quy Nhon QVGA Qwaqwa qWave QWERTY qwerty keyboard Qwest QWIP QWITT diode QWXGA QX QXGA r R association R center R Coronae Borealis star R display R factor R galaxy R indicator R lamp R loop hybridization R magnitude R meter R Monocerotis R scan R scope r selection R star R tectonite R unit R wave R&D R-branch R-C amplifier R-C circuit R-C constant R-C coupled amplifier R-C coupling R-C network R-C oscillator			R 20B3 R 20B3 R 22 R 23 R 23 R 30B2 R 31 R 40 R 4749 R a B R a B R and B R and B R and D R and D R and D R and D R and R R and R R association R aw R banding R Browning R Browning R Buckminster Fuller R center R Coding Conventions R conformational state R corona borealis star R corona borealis star R Coronae Borealis star R D'Oyly Carte R display R E Lee R E M R E M R E M R f R F Scott R F Scott R factor R factor R factor R factor R factor R factor plasmid R factor plasmid R factor plasmid R factor, resistance factor R factor, resistance factor R factor, resistance factor R factor, resistance factor R factor, resistance factor R galaxy R i R indicator R Kipling R L Stevenson R L Stevenson R lamp R loop hybridization

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