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HD 13952


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Infrared observations of metal-deficient stars
Infrared magnitudes in the J, H, K and L bands for 64 metal-deficientstars spanning a wide range in effective temperature, luminosity andmetal content are presented. An accuracy of 0.02 magnitude is obtainedfor the JHK bands and 0.03 for the L filter. Infrared-infrared andoptical-infrared color-color diagrams are discussed and compared withthe mean intrinsic tracks for Population I stars. It is concluded thatinfrared colors are not notably dependent on metallicity, with someexceptions for the reddest giants, which can be also interpreted byresidual effects in the transformation equations between differentsystems. The near infrared photometric system of the Observatorio delTeide, from the Instituto de Astrofisica de Canarias, is also brieflydiscussed.

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观测天体数据

星座:南極座
右阿森松:01h50m16.57s
赤纬:-87°13'42.6"
视星:9.209
右阿森松适当运动:-24.5
赤纬适当运动:-22.7
B-T magnitude:9.868
V-T magnitude:9.264

目录:
适当名称   (Edit)
HD 1989HD 13952
TYCHO-2 2000TYC 9498-259-1
USNO-A2.0USNO-A2 0000-00109651
HIPHIP 8550

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