17 CMa
17 CMa
17 CMa is a A-type (White) star located in the constellation Canis Major. It carries the designation 17 CMa.
Located approximately 504.1 light-years from Earth, 17 CMa resides within the broader disk of our Milky Way galaxy.
17 CMa is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.80, 17 CMa 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 +0.048.
Physical Properties
| Spectral Class | Class A — A-type (White) |
| Color Index (B−V) | 0.048 |
Observation
| Apparent Magnitude | +5.80 |
| Absolute Magnitude | -0.14 |
| Distance | 504 ly |
| Constellation | Canis Major |
Position
| Right Ascension | 6h 55.05m |
| Declination | -20° 24.29′ |
Frequently Asked Questions
What type of star is 17 CMa?
17 CMa is a Class A — A-type (White) star.
How far is 17 CMa from Earth?
17 CMa is approximately 504.1 light-years from Earth.
Can you see 17 CMa with the naked eye?
With an apparent magnitude of 5.80, 17 CMa is visible to the naked eye.
What constellation is 17 CMa in?
17 CMa is located in the constellation Canis Major.