Magnitude 5 | Constellation Monoceros | |
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19 Monocerotis is a class B1V (blue main-sequence) star in the constellation Monoceros. Its apparent magnitude is 5.00 and it is approximately 1220 light years away based on parallax.
It is a Beta Cephei variable, ranging from 5.01 to 4.96 magnitude with a period of 0.19 days.
References
19 Monocerotis Wikipedia(Text) CC BY-SA