3 Cap
3 Cap
3 Cap is a B-type (Blue-White) star. It carries the designation 3 Cap.
Located approximately 443.1 light-years from Earth, 3 Cap resides within the broader disk of our Milky Way galaxy.
3 Cap is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.
3 Cap has an apparent magnitude of +6.30, placing it beyond naked-eye visibility. A good pair of binoculars or a small telescope is required to observe this star. Observers will note its blue-white hue, which corresponds to a B-V color index of +0.005.
Physical Properties
| Spectral Class | Class B — B-type (Blue-White) |
| Color Index (B−V) | 0.005 |
Observation
| Apparent Magnitude | +6.30 |
| Absolute Magnitude | 0.63 |
| Distance | 443 ly |
Position
| Right Ascension | 20h 16.38m |
| Declination | -12° 20.23′ |
Frequently Asked Questions
What type of star is 3 Cap?
3 Cap is a Class B — B-type (Blue-White) star.
How far is 3 Cap from Earth?
3 Cap is approximately 443.2 light-years from Earth.
Can you see 3 Cap with the naked eye?
With an apparent magnitude of 6.30, 3 Cap is not visible to the naked eye.