BH Cygni has alternative name(s) :- BH Cyg.
More details on objects' alternative names can be found at Star Names .
The location of the star in the night sky is determined by the Right Ascension (R.A.) and Declination (Dec.), these are equivalent to the Longitude and Latitude on the Earth. The Right Ascension is how far expressed in time (hh:mm:ss) the star is along the celestial equator. If the R.A. is positive then its eastwards. The Declination is how far north or south the object is compared to the celestial equator and is expressed in degrees. For BH Cygni, the location is 21h 18m 57.62 and +41° 53` 37.2 .
BH Cygni has a spectral type of M5 D. This means the star is a red star.
The star is a pulsating Omicron Ceti variable type which means that its size changes over time. The Variable Type is usually named after the first star of that type to be spotted.
|Primary / Proper / Traditional Name||BH Cygni|
|Alternative Names||BH Cyg|
|Spectral Type||M5 D|
|Constellation's Main Star||No|
|Multiple Star System||No / Unknown|
|Right Ascension (R.A.)||21h 18m 57.62|
|Declination (Dec.)||+41° 53` 37.2|
|Variable Star Class||Pulsating|
|Variable Star Type||Omicron Ceti|
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