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HD 21866

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관련 글

Speckle Interferometry at the US Naval Observatory. VI. The results of 1068 speckle interferometric observations of doublestars, made with the 26 inch (0.66 m) refractor of the US NavalObservatory, are presented. These observations are averaged into 841means of 815 binary stars. The systems range in separation from 0.22" to6.01" with a mean separation of 2.21" and have a limiting secondarymagnitude of V=12.5. This is the sixth in a series of papers presentingmeasures obtained with this system, and it covers the period 1999January 1 through 2000 January 9.
Micrometer Measurements of Visual Double Stars Obtained at the Nice and Pic-Du Observatories Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1987A&AS...71..115L&db_key=AST
Visual double stars measured at Lick Observatory Mount Hamilton, California. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1979PASP...91..479H&db_key=AST
Mikrometermessungen von Doppelsternen. VI. Not Available
Measures of 313 doubles stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1963AJ.....68..114W&db_key=AST
Micrometer Measures of Double Stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1959ApJS....4...45V&db_key=AST
Measures of 266 double stars. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1957AJ.....62..153W&db_key=AST

관련 링크

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관측 및 측정 데이터

별자리:	황소자리
적경:	03^h31^m45.67^s
적위:	+07Â°48'57.5"
가시등급:	8.408
적경상의 고유운동:	-33.1
적위상의 고유운동:	-24
B-T magnitude:	8.947
V-T magnitude:	8.453

천체목록:

일반명	(Edit)
HD 1989	HD 21866
TYCHO-2 2000	TYC 650-489-1
USNO-A2.0	USNO-A2 0975-00770200

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