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HD 90


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Medium-Resolution Stellar Spectra in the L Band from 2400 to 3000 cm-1 (3.3 to 4.2 Microns)
We present a brief atlas of L-band (3.3-4.2 μm) spectra for 42 starsplus the Sun and a sunspot observed at a resolving power of R~3000. Thiscontribution is intended to supplement our previous K-band, H-band, andJ-band spectral atlases. The L-band data, which cover some or all of the2400 to 3000 cm-1 (3.3-4.2 μm) region, are mainly forluminous late-type stars. In reducing these data, special care has beentaken to remove telluric features, especially water vapor. We identifytemperature- and luminosity-sensitive atomic and molecular indices toaid in the classification of stellar spectra in the L band. The data areavailable electronically.

Low dispersion spectrophotometry of bright early-type stars
Intensity distributions for 79 stars of spectral types O9 to A3, plus anF3 star and 7 standard stars, are presented. The observations cover awavelength range from 3300 to 6000 A. The internal errors are discussed.Synthetic uby colors are obtained for all the stars observed, and arecompared with observed published data.

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观测天体数据

星座:鯨魚座
右阿森松:00h05m43.05s
赤纬:-22°30'35.2"
视星:9.631
右阿森松适当运动:36.4
赤纬适当运动:-2.2
B-T magnitude:10.254
V-T magnitude:9.683

目录:
适当名称   (Edit)
HD 1989HD 90
TYCHO-2 2000TYC 6412-225-1
USNO-A2.0USNO-A2 0600-00042217
HIPHIP 478

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