4 Lac

4 Lac

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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 B 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.