INHABITED SKY

To Survive in the Universe

Top Contributors

→ Adopt this star

HD 187979

目录

图像
相关文章
相关链接
团体

图像

上传图像

DSS Images Other Images

相关文章

CCD astrometry and components instrumental magnitude difference of 432 Hipparcos wide visual double stars Context: We measured the angular separations, position angles, ΔV, Δ y and Δ I of wide visual double stars during the period2003-2005. At least one component of the double stars in our sample hasan entry in the Hipparcos catalogue. Aims: Our measurements are acontribution to the study of the nature of these double stars. Methods: The northern double stars of the project were observed with the1.2 m telescope of the Kryonerion observatory and the southern with the1.0 m SAAO. We performed multiple-exposure CCD imaging of our targetsand used the standard procedure of data reduction and astrometric CCDcalibrations. Results: We present measurements of 213 northern and 219southern wide binaries.Based on observations made at Kryonerion Observatory of the NationalObservatory of Athens, Greece, and the South African AstronomicalObservatory. Full Table 1 and Tables 2, 3 are only available inelectronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr(130.79.128.5) or viahttp://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/472/1055
Mesures d'etoiles doubles faites a Nice (5eme serie. Double star measurements made at Nice We present the last observations from two lists: General program and MLRpairs, made with the 50~cm refractor of Nice Observatory.
A second list of wide visual binaries Not Available
A second list of wide visual binaries Not Available
Mesures d'étoiles doubles faites aux Observatoires Yerkes et McDonald Not Available

相关链接

- 没有找到链接 -

下列团体成员

观测天体数据

星座:	天鵝座
右阿森松:	19^h50^m07.53^s
赤纬:	+54Â°39'06.5"
视星:	7.994
距离:	325.733 天文距离
右阿森松适当运动:	1
赤纬适当运动:	1.8
B-T magnitude:	10.151
V-T magnitude:	8.173

目录:

适当名称
HD 1989	HD 187979
TYCHO-2 2000	TYC 3939-1659-1
USNO-A2.0	USNO-A2 1425-10019275
HIP	HIP 97587

→ 要求更多目录从vizier