| 单词 | R Coronae Borealis star |
| 释义 | R Coronae Borealis star [¦är kǝ¦rō´nē ´bȯr·ē`al·ǝs ´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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