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Analyze real-time astronomical and meteorological data for 21 Oph.
21 Oph
A2Vs21 Oph · Ophiuchus
21 Oph is a A2Vs-type star located in the constellation of Ophiuchus. Sitting at a distance of approximately 379 ly from Earth, it shines with an apparent magnitude of 5.51, making it an interesting target for observation. It is officially recorded in the Hipparcos catalog as HIP 82480.
Common Name21 Oph
Bayer Designation21 Oph
HIP Catalog IDHIP 82480
ConstellationOphiuchus
Right Ascension16h 51m 24.9s
Declination+1° 12' 57"
Distance379 ly
Apparent Magnitude+5.51
Absolute Magnitude+0.18
Color Index (B-V)0.06
Spectral ClassA2Vs
Variable StarNo