Albireo B
6Bet2Cyg
Albireo B is a B-type (Blue-White) star located in the constellation Cygnus. It carries the designation 6Bet2Cyg.
Located approximately 399.7 light-years from Earth, Albireo B resides within the broader disk of our Milky Way galaxy.
Albireo B is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.12, Albireo B sits near the limit of naked-eye visibility. It can be glimpsed without optical aid under dark skies, but binoculars will make observation much easier. Observers will note its blue hue, which corresponds to a B-V color index of -0.095.
Physical Properties
| Spectral Class | Class B — B-type (Blue-White) |
| Color Index (B−V) | -0.095 |
Observation
| Apparent Magnitude | +5.12 |
| Absolute Magnitude | -0.32 |
| Distance | 400 ly |
| Constellation | Cygnus |
Position
| Right Ascension | 19h 30.76m |
| Declination | 27° 57.92′ |
Frequently Asked Questions
What type of star is Albireo B?
Albireo B is a Class B — B-type (Blue-White) star.
How far is Albireo B from Earth?
Albireo B is approximately 399.7 light-years from Earth.
Can you see Albireo B with the naked eye?
With an apparent magnitude of 5.12, Albireo B is visible to the naked eye.
What constellation is Albireo B in?
Albireo B is located in the constellation Cygnus.