39 UMa
39 UMa
39 UMa is a A-type (White) star located in the constellation Ursa Major. It carries the designation 39 UMa.
Located approximately 369.8 light-years from Earth, 39 UMa resides within the broader disk of our Milky Way galaxy.
39 UMa is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.79, 39 UMa 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 -0.038.
Physical Properties
| Spectral Class | Class A — A-type (White) |
| Color Index (B−V) | -0.038 |
Observation
| Apparent Magnitude | +5.79 |
| Absolute Magnitude | 0.52 |
| Distance | 370 ly |
| Constellation | Ursa Major |
Position
| Right Ascension | 10h 43.72m |
| Declination | 57° 11.95′ |
Frequently Asked Questions
What type of star is 39 UMa?
39 UMa is a Class A — A-type (White) star.
How far is 39 UMa from Earth?
39 UMa is approximately 369.8 light-years from Earth.
Can you see 39 UMa with the naked eye?
With an apparent magnitude of 5.79, 39 UMa is visible to the naked eye.
What constellation is 39 UMa in?
39 UMa is located in the constellation Ursa Major.