Praecipua 소개
설명
Praecipua, 46 Leonis Minoris, is the brightest star in the faint constellation Leo Minor at magnitude 3.83. It is a K-type subgiant of spectral class K0+ III-IV lying 95 light-years away, with a mass of 1.7 Suns and a radius of about 8 Suns. Despite being the constellation's alpha star by brightness, 46 LMi received a Flamsteed number rather than a Greek letter due to Bayer's oversight when the constellation was drawn up.
관측 팁
Praecipua is the only truly bright star in Leo Minor, a small triangular constellation wedged between Leo and Ursa Major. Find Leo Minor by looking for a small kite-shaped asterism north of Leo's main outline. Praecipua is the brightest point in that kite. Best observed February through May.
역사
The name Praecipua is Latin for "chief" or "principal," reflecting the star's role as the brightest in its constellation. The name was formally adopted by the IAU in 2017. Leo Minor was invented by Johannes Hevelius in 1687, and Praecipua has been its principal star ever since.
재미있는 사실
Praecipua's history is a celestial naming curiosity: when Francis Baily published his updated star catalog in the early 19th century, he accidentally skipped assigning Alpha to the brightest star in Leo Minor, giving only a Beta to the next brightest — a rare omission that leaves Leo Minor as one of the few constellations in the modern sky without an alpha. Praecipua remains Leo Minor's most prominent star and a reliable pointer toward the faint surrounding galaxies.
관측
1물리적 특성
2위치 & 식별자
3관측 난이도
| 장비 | 보틀 3 | 보틀 4 | 보틀 5 |
|---|---|---|---|
| 맨눈 맨눈 | 쉬움 | 보통+ | 보통+ |
| 50mm 파인더 50mm 파인더 | 쉬움 | 쉬움 | 쉬움 |
| 150mm 망원경 150mm 망원경 | 쉬움 | 쉬움 | 쉬움 |
보틀 3 = 시골 · 4 = 외곽 · 5 = 교외
5서베이 이미지
서베이 이미지 로드 중…
탐구
7
크기 비교
8
별 비교
9
분광 분류
11
항성의 진화
12
흑체 복사 스펙트럼
13
항성 흡수 스펙트럼
스펙트럼 유형을 기반으로 한 시뮬레이션 흡수 스펙트럼. 선 위에 마우스를 올려 원소를 식별하세요.
14
항성 핵융합
발견
15항성 참고사항
16
빛의 여행 타임머신
17
상대론적 여행
하늘에서 가까운 천체
몇 도 이내의 다른 대상 — 망원경을 조금 움직여 계속 탐험해 보세요.
가시성 점수는 150 mm 뉴턴, 보틀 4 기준입니다.
