21 Mon
21 Mon
21 Mon is a F-type (Yellow-White) star. It carries the designation 21 Mon.
Located approximately 284.4 light-years from Earth, 21 Mon resides within the broader disk of our Milky Way galaxy.
21 Mon is classified as a spectral class F star (F-type (Yellow-White)) on the Harvard spectral classification system.
With an apparent magnitude of +5.44, 21 Mon 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 white hue, which corresponds to a B-V color index of +0.310.
물리적 특성
| 분광형 | F Class F — F-type (Yellow-White) |
| 색지수 (B−V) | 0.310 |
관측
| 겉보기 등급 | +5.44 |
| 절대 등급 | 0.74 |
| 거리 | 284 ly |
위치
| 적경 | 7h 11.39m |
| 적위 | 0° 18.12′ |
Frequently Asked Questions
What type of star is 21 Mon?
21 Mon is a Class F — F-type (Yellow-White) star.
How far is 21 Mon from Earth?
21 Mon is approximately 284.4 light-years from Earth.
Can you see 21 Mon with the naked eye?
With an apparent magnitude of 5.44, 21 Mon is visible to the naked eye.