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

HD 254903


내용

사진

사진 업로드

DSS Images   Other Images


관련 글

Uvby-beta observations of 528 type B stars with V between the 8th and 9th magnitude
The paper presents uvby-beta measurements of 528 type B stars selectedfrom the SAO Catalog on the basis of two criteria: the spectral types inthe range B3-B5 and mV between the 8th and the 9th magnitude. Reddeningindependent (c1) values are estimated from the spectral classificationand compared to the observed values. No systematic trend with observed(b-y), H-beta, or spectral type appears to be present, but the range of(c1) residuals is surprisingly large. A rather large part of the starshas small beta values, smaller than for the BIa supergiants. Only twoare classified as O stars and most of them have the suffix e, ne, ornne. Most beta values for the O type stars are slightly above the upperlimit of 2.585 m.

Stellar Spectra in Milky way Regions. VIII. a Region in Orion.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4...23M&db_key=AST

새 글 등록


관련 링크

  • - 링크가 없습니다. -
새 링크 등록


다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:오리온자리
적경:06h18m35.18s
적위:+12°07'25.5"
가시등급:9.496
적경상의 고유운동:-0.3
적위상의 고유운동:0.5
B-T magnitude:9.47
V-T magnitude:9.494

천체목록:
일반명   (Edit)
HD 1989HD 254903
TYCHO-2 2000TYC 739-1991-1
USNO-A2.0USNO-A2 0975-02929271

→ VizieR에서 더 많은 목록을 가져옵니다.