To Survive in the Universe    
Services
    Why to Adopt     Top Contributors     천체사진     컬렉션     포럼     Blog New!     질문및답변     로그인  
→ Adopt this star  

HD 81309


내용

사진

사진 업로드

DSS Images   Other Images


관련 글

Lists of photometric AM candidates
The Geneva photometric m parameter (Nicolet and Cramer, 1982) is used inorder to select Am photometric candidates from the Rufener (1981)catalogue. Two lists are given, the first containing field stars and thesecond cluster stars. According to the photometric criteria thediffusion process probably responsible for the Am phenomenon takes placerather quickly as Am candidates are present in young clusters. It isconfirmed that the phenomenon is enhanced by low rotational velocity andhigh metallicity. The age seems to slightly affect the Am phenomenon.

Bright southern stars of astrophysical interest
The paper lists a number of bright peculiar stars in the SouthernHemisphere discovered on 20-A/mm spectrograms. Recent information isalso given for a few known peculiar objects. The lists include: oneLambda Boo star, 4 Hg and other Bp stars, 7 Am stars, 17 shell oremission-line stars, and 37 double-lined spectroscopic binaries, amongwhich are two triple-lined, four composite, eight variable or eclipsing,and three peculiar shell and/or emission-line systems.

Four-colour and H BET photometry of some bright southern stars- II.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1972MNRAS.160..155S&db_key=AST

Variability of A and F main sequence stars.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1971A&A....12..223J&db_key=AST

새 글 등록


관련 링크

  • - 링크가 없습니다. -
새 링크 등록


다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:돛자리
적경:09h23m44.80s
적위:-37°45'26.0"
가시등급:6.48
거리:100.806 파섹
적경상의 고유운동:-80
적위상의 고유운동:25.4
B-T magnitude:6.701
V-T magnitude:6.494

천체목록:
일반명
HD 1989HD 81309
TYCHO-2 2000TYC 7691-4189-1
USNO-A2.0USNO-A2 0450-09092827
BSC 1991HR 3735
HIPHIP 46075

→ VizieR에서 더 많은 목록을 가져옵니다.