40 Gem (40 Gem): คุณสมบัติ ระยะทาง และชั้นสเปกตรัม

40 Gem is a B-type (Blue-White) star located in the constellation Gemini. It carries the designation 40 Gem.

At a distance of roughly 1,195 light-years, 40 Gem is a distant star lying deep within the Milky Way galaxy.

40 Gem is classified as a spectral class B star (B-type (Blue-White)) on the Harvard spectral classification system.

40 Gem has an apparent magnitude of +6.40, placing it beyond naked-eye visibility. A good pair of binoculars or a small telescope is required to observe this star. Observers will note its blue hue, which corresponds to a B-V color index of -0.111.

คุณสมบัติทางกายภาพ

ประเภทสเปกตรัม	Class B — B-type (Blue-White)
ดัชนีสี (B−V)	-0.111

การสังเกต

โชติมาตรปรากฏ	+6.40
โชติมาตรสัมบูรณ์	-1.42
ระยะทาง	1,195 ly
กลุ่มดาว	Gemini

ตำแหน่ง

ไรต์แอสเซนชัน	6^h 59.47^m
เดคลิเนชัน	25° 54.85′

คำถามที่พบบ่อย

What type of star is 40 Gem?

40 Gem is a Class B — B-type (Blue-White) star.

How far is 40 Gem from Earth?

40 Gem is approximately 1,194.7 light-years from Earth.

Can you see 40 Gem with the naked eye?

With an apparent magnitude of 6.40, 40 Gem is not visible to the naked eye.

What constellation is 40 Gem in?

40 Gem is located in the constellation Gemini.