55 UMa
55 UMa
55 UMa is a A-type (White) star located in the constellation Ursa Major. It carries the designation 55 UMa.
Located approximately 191.9 light-years from Earth, 55 UMa resides within the broader disk of our Milky Way galaxy.
55 UMa is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.
With an apparent magnitude of +4.76, 55 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-white hue, which corresponds to a B-V color index of +0.113.
Physical Properties
| Spectral Class | Class A — A-type (White) |
| Color Index (B−V) | 0.113 |
Observation
| Apparent Magnitude | +4.76 |
| Absolute Magnitude | 0.91 |
| Distance | 192 ly |
| Constellation | Ursa Major |
Position
| Right Ascension | 11h 19.13m |
| Declination | 38° 11.13′ |
Frequently Asked Questions
What type of star is 55 UMa?
55 UMa is a Class A — A-type (White) star.
How far is 55 UMa from Earth?
55 UMa is approximately 191.9 light-years from Earth.
Can you see 55 UMa with the naked eye?
With an apparent magnitude of 4.76, 55 UMa is visible to the naked eye.
What constellation is 55 UMa in?
55 UMa is located in the constellation Ursa Major.