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TYC 1392-409-1


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Pulkovo compilation of radial velocities for 35495 stars in a common system.
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Investigation of the Praesepe cluster. I - Identification of halo members
Coravel radial velocities and UBVRI (Kron) photometry of 117 starsselected by their proper motion in the region surrounding Praesepe (NGC2632, C 0837 + 201) have permitted identification of 48 members of thecluster halo, up to a distance of 4 deg from the cluster center. The 43(F5-K0) new members represent 51 percent of the number of nucleusmembers known in this spectral interval. Ten spectroscopic binaries havebeen discovered among the F5-F0 members, resulting in a frequency of 23percent, which rises to 33 percent four probable binaries are taken intoaccount. Six orbits have been obtained, with periods ranging from 1.2 to143 d. Four additional binaries have been detected among the non-memberstars.

Novye chleny korony skopleniia Iasli
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观测天体数据

星座:巨蟹座
右阿森松:08h37m12.97s
赤纬:+17°15'14.7"
视星:8.923
距离:93.897 天文距离
右阿森松适当运动:-39
赤纬适当运动:-24.9
B-T magnitude:9.601
V-T magnitude:8.979

目录:
适当名称
TYCHO-2 2000TYC 1392-409-1
USNO-A2.0USNO-A2 1050-05799392
HIPHIP 42277

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