1 Cen
1 Cen
1 Cen is a F-type (Yellow-White) star located in the constellation Centaurus. It carries the designation 1 Cen.
Located approximately 63.3 light-years from Earth, 1 Cen resides within the broader disk of our Milky Way galaxy.
1 Cen is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.23, 1 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 white hue, which corresponds to a B-V color index of +0.390.
Physical Properties
| Spectral Class | Class F — F-type (Yellow-White) |
| Color Index (B−V) | 0.390 |
Observation
| Apparent Magnitude | +4.23 |
| Absolute Magnitude | 2.79 |
| Distance | 63.3 ly |
| Constellation | Centaurus |
Position
| Right Ascension | 13h 45.69m |
| Declination | -33° 2.62′ |
Frequently Asked Questions
What type of star is 1 Cen?
1 Cen is a Class F — F-type (Yellow-White) star.
How far is 1 Cen from Earth?
1 Cen is approximately 63.3 light-years from Earth.
Can you see 1 Cen with the naked eye?
With an apparent magnitude of 4.23, 1 Cen is visible to the naked eye.
What constellation is 1 Cen in?
1 Cen is located in the constellation Centaurus.