3 Cen

3 Cen

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3 Cen is a B-type (Blue-White) star located in the constellation Centaurus. It carries the designation 3 Cen.

Located approximately 343.7 light-years from Earth, 3 Cen resides within the broader disk of our Milky Way galaxy.

3 Cen is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.

With an apparent magnitude of +4.32, 3 Cen 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 -0.146.

Physical Properties

Spectral Class B Class B — B-type (Blue-White)
Color Index (B−V) -0.146

Observation

Apparent Magnitude +4.32
Absolute Magnitude -0.79
Distance 344 ly
Constellation Centaurus

Position

Right Ascension 13h 51.83m
Declination -32° 59.65′

Frequently Asked Questions

What type of star is 3 Cen?
3 Cen is a Class B — B-type (Blue-White) star.
How far is 3 Cen from Earth?
3 Cen is approximately 343.7 light-years from Earth.
Can you see 3 Cen with the naked eye?
With an apparent magnitude of 4.32, 3 Cen is visible to the naked eye.
What constellation is 3 Cen in?
3 Cen is located in the constellation Centaurus.