Altair

53Alp Aql

Altair is a A-type (White) star located in the constellation Aquila. It carries the designation 53Alp Aql.

Altair lies approximately 16.7 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 16 years ago.

Altair is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.

Altair has an apparent magnitude of +0.76, making it a bright and prominent star that is readily visible to the naked eye. It is one of the more conspicuous stars in its region of the sky. Observers will note its blue-white hue, which corresponds to a B-V color index of +0.221.

คุณสมบัติทางกายภาพ

ประเภทสเปกตรัม Class A — A-type (White)
ดัชนีสี (B−V) 0.221

การสังเกต

โชติมาตรปรากฏ +0.76
โชติมาตรสัมบูรณ์ 2.21
ระยะทาง 16.7 ly
กลุ่มดาว Aquila

ตำแหน่ง

ไรต์แอสเซนชัน 19h 50.78m
เดคลิเนชัน 8° 52.10′

คำถามที่พบบ่อย

What type of star is Altair?
Altair is a Class A — A-type (White) star.
How far is Altair from Earth?
Altair is approximately 16.7 light-years from Earth.
Can you see Altair with the naked eye?
With an apparent magnitude of 0.76, Altair is visible to the naked eye.
What constellation is Altair in?
Altair is located in the constellation Aquila.