Magnitude 3.77 Apparent magnitude (V) 3.77 | Constellation Cygnus | |
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Iota2 Cygni (ι2 Cyg, often simply called ι Cyg) is a star in the constellation Cygnus. Its apparent magnitude is 3.77 Located around 37.20 parsecs (121.3 ly) distant, it is a blue-white main-sequence star of spectral type A5V, a star that is currently fusing its core hydrogen. Based on rapid changes in the strength of a singly-ionized calcium absorption line, the star is likely host to a circumstellar disk.
References
Iota2 Cygni Wikipedia(Text) CC BY-SA