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HD 89471


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Rotational modulation of the brightness and the spotted regions of the red dwarfs DK Leo, AD Leo, and GT Peg
The rotational modulation and variability of the mean brightness ofthree poorly studied spotted red dwarfs are considered. Theirphotometric behavior can be described well by a zonal spottedness model.The areas of the spots comprise up to 11-13% of the total stellarsurface, and the spots themselves are 600-1500 K cooler than thesurrounding photosphere.

Spot Photometry of AD Leo in 1992 and 1993
Not Available

Coordinated Observations of AD Leonis
IAUC 5255 available at Central Bureau for Astronomical Telegrams.IAUC 5255 available at Central Bureau for Astronomical Telegrams.

Coordinated Ultraviolet, Optical and Radio Observations of RS CVn and Flare Stars
Not Available

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观测天体数据

星座:獅子座
右阿森松:10h19m53.94s
赤纬:+20°24'15.3"
视星:7.736
距离:458.716 天文距离
右阿森松适当运动:-37.7
赤纬适当运动:0.4
B-T magnitude:9.501
V-T magnitude:7.882

目录:
适当名称
HD 1989HD 89471
TYCHO-2 2000TYC 1426-1209-1
USNO-A2.0USNO-A2 1050-06256439
HIPHIP 50579

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