시작하기     To Survive in the Universe    
Inhabited Sky
    News@Sky     천체사진     컬렉션     포럼     Blog New!     질문및답변     출판     로그인  

HD 3162


내용

사진

사진 업로드

DSS Images   Other Images


관련 글

The rotation of AP stars
Photometric periods of silicon stars belonging to clusters andassociations as well as to the field are discussed in relation withtheories of magnetic braking taking place on the main sequence. It isshown that Si stars do not lose the bulk of their angular momentumduring their main-sequence lifetime, but must have lost it before. Anybraking mechanism which predicts an e-folding time of the order of, orshorter than, the star's lifetime seems ruled out. The theory of purelyhydromagnetic rotational braking is much too efficient to fit theobservations (unless under its earlier form proposed by Kulsrud, 1971),while the accretion theory does not fit them either, although it seemsmore realistic. Preinjection of cosmic rays by means of Ap stars appearsdoubtful.

새 글 등록


관련 링크

  • - 링크가 없습니다. -
새 링크 등록


다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:카시오페이아자리
적경:00h35m59.64s
적위:+72°29'55.5"
가시등급:8.276
거리:529.101 파섹
적경상의 고유운동:-22.2
적위상의 고유운동:-26.2
B-T magnitude:10.738
V-T magnitude:8.48

천체목록:
일반명   (Edit)
HD 1989HD 3162
TYCHO-2 2000TYC 4303-1817-1
USNO-A2.0USNO-A2 1575-00343422
HIPHIP 2838

→ VizieR에서 더 많은 목록을 가져옵니다.