17 Cap
17 Cap
17 Cap is a A-type (White) star. It carries the designation 17 Cap.
Located approximately 263.7 light-years from Earth, 17 Cap resides within the broader disk of our Milky Way galaxy.
17 Cap is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.91, 17 Cap 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 +0.066.
Physical Properties
| Spectral Class | Class A — A-type (White) |
| Color Index (B−V) | 0.066 |
Observation
| Apparent Magnitude | +5.91 |
| Absolute Magnitude | 1.37 |
| Distance | 264 ly |
Position
| Right Ascension | 20h 46.17m |
| Declination | -21° 30.84′ |
Frequently Asked Questions
What type of star is 17 Cap?
17 Cap is a Class A — A-type (White) star.
How far is 17 Cap from Earth?
17 Cap is approximately 263.7 light-years from Earth.
Can you see 17 Cap with the naked eye?
With an apparent magnitude of 5.91, 17 Cap is visible to the naked eye.