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HD 202989


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Space motions of galactic G- and K-type stars
Spectra of 912 G- and K-type stars in six galactic directions have beensecured. The relevant space motions of the stars, subdivided intodistance groups, have been derived; these show no significant departuresfrom the mean motion of nearby stars. The velocity dispersions, ingeneral, indicate that these (mainly giant) stars are moderately old.The dispersion in u is lower than that for nearby stars, and thesignificance of this result is discussed.

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观测天体数据

星座:天鵝座
右阿森松:21h18m10.39s
赤纬:+39°21'17.2"
视星:8.654
距离:98.425 天文距离
右阿森松适当运动:115.5
赤纬适当运动:28.8
B-T magnitude:9.226
V-T magnitude:8.702

目录:
适当名称   (Edit)
HD 1989HD 202989
TYCHO-2 2000TYC 3169-1065-1
USNO-A2.0USNO-A2 1275-15273790
HIPHIP 105160

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