21 Cnc
21 Cnc
21 Cnc is a M-type (Red) star. It carries the designation 21 Cnc.
Located approximately 888.7 light-years from Earth, 21 Cnc resides within the broader disk of our Milky Way galaxy.
21 Cnc is classified as a spectral class M star (M-type (Red)) on the Harvard spectral classification system.
21 Cnc has an apparent magnitude of +6.11, 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 red hue, which corresponds to a B-V color index of +1.507.
物理特性
| 光谱类型 | M Class M — M-type (Red) |
| 色指数 (B−V) | 1.507 |
观测
| 视星等 | +6.11 |
| 绝对星等 | -1.07 |
| 距离 | 889 ly |
位置
| 赤经 | 8h 23.92m |
| 赤纬 | 10° 37.92′ |
Frequently Asked Questions
What type of star is 21 Cnc?
21 Cnc is a Class M — M-type (Red) star.
How far is 21 Cnc from Earth?
21 Cnc is approximately 888.7 light-years from Earth.
Can you see 21 Cnc with the naked eye?
With an apparent magnitude of 6.11, 21 Cnc is not visible to the naked eye.