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

HD 1941


내용

사진

사진 업로드

DSS Images   Other Images


관련 글

Maximum separations among cataloged binaries
The paper classifies many of the widest common-motion binaries listed inthe Aitken catalog and list 72 physical pairs with known photoelectricphotometry, 31 physical pairs without good photometry, and 27 opticalpairs. As a function of primary types, the physical systems have upperlimits to their separations that are exceeded by some of the opticalpairs. The fact that optical pairs occur with larger separations impliesthat the limits are real ones and not just catalog limitations. Thoselimits (in AU) are expressed by 2500 M1 exp 1.54 for B5-KO main-sequenceprimaries. The same limits hold for the Trapezium and hierarchicalsystems studied previously.

새 글 등록


관련 링크

  • - 링크가 없습니다. -
새 링크 등록


다음 그룹에 속해있음:


관측 및 측정 데이터

별자리:안드로메다자리
적경:00h23m51.48s
적위:+29°29'45.3"
가시등급:8.487
거리:80.192 파섹
적경상의 고유운동:38.5
적위상의 고유운동:1.1
B-T magnitude:9.196
V-T magnitude:8.546

천체목록:
일반명
HD 1989HD 1941
TYCHO-2 2000TYC 1737-1194-1
USNO-A2.0USNO-A2 1125-00146692
HIPHIP 1887

→ VizieR에서 더 많은 목록을 가져옵니다.