25The UMa

25The UMa

25The UMa is a F-type (Yellow-White) star located in the constellation Ursa Major. It carries the designation 25The UMa.

25The UMa lies approximately 44.0 light-years from Earth, placing it within the Sun's local stellar neighborhood. This relatively short cosmic distance means the light reaching us today departed the star only about 43 years ago.

25The UMa is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.

At an apparent magnitude of +3.17, 25The UMa is visible to the naked eye under reasonably clear skies. It may require dark-sky conditions to be seen comfortably in areas with significant light pollution. Observers will note its white hue, which corresponds to a B-V color index of +0.475.

คุณสมบัติทางกายภาพ

ประเภทสเปกตรัม Class F — F-type (Yellow-White)
ดัชนีสี (B−V) 0.475

การสังเกต

โชติมาตรปรากฏ +3.17
โชติมาตรสัมบูรณ์ 2.52
ระยะทาง 44.0 ly
กลุ่มดาว Ursa Major

ตำแหน่ง

ไรต์แอสเซนชัน 9h 32.86m
เดคลิเนชัน 51° 40.64′

คำถามที่พบบ่อย

What type of star is 25The UMa?
25The UMa is a Class F — F-type (Yellow-White) star.
How far is 25The UMa from Earth?
25The UMa is approximately 44.0 light-years from Earth.
Can you see 25The UMa with the naked eye?
With an apparent magnitude of 3.17, 25The UMa is visible to the naked eye.
What constellation is 25The UMa in?
25The UMa is located in the constellation Ursa Major.