4 Lac
4 Lac
4 Lac is a B-type (Blue-White) star. It carries the designation 4 Lac.
At a distance of roughly 2,249 light-years, 4 Lac is a distant star lying deep within the Milky Way galaxy.
4 Lac is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.55, 4 Lac 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-white hue, which corresponds to a B-V color index of +0.092.
Physical Properties
| Spectral Class | Class B — B-type (Blue-White) |
| Color Index (B−V) | 0.092 |
Observation
| Apparent Magnitude | +4.55 |
| Absolute Magnitude | -4.64 |
| Distance | 2,249 ly |
Position
| Right Ascension | 22h 24.52m |
| Declination | 49° 28.58′ |
Frequently Asked Questions
What type of star is 4 Lac?
4 Lac is a Class B — B-type (Blue-White) star.
How far is 4 Lac from Earth?
4 Lac is approximately 2,249.4 light-years from Earth.
Can you see 4 Lac with the naked eye?
With an apparent magnitude of 4.55, 4 Lac is visible to the naked eye.