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HD 165761


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Classification and Identification of IRAS Sources with Low-Resolution Spectra
IRAS low-resolution spectra were extracted for 11,224 IRAS sources.These spectra were classified into astrophysical classes, based on thepresence of emission and absorption features and on the shape of thecontinuum. Counterparts of these IRAS sources in existing optical andinfrared catalogs are identified, and their optical spectral types arelisted if they are known. The correlations between thephotospheric/optical and circumstellar/infrared classification arediscussed.

UBV photometry of HD stars in the fields of selected cataclysmic variables.
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IRAS catalogues and atlases - Atlas of low-resolution spectra
Plots of all 5425 spectra in the IRAS catalogue of low-resolutionspectra are presented. The catalogue contains the average spectra ofmost IRAS poiont sources with 12 micron flux densities above 10 Jy.

The New Emission Star
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Observation and Astrometry data

Constellation:Ophiucus
Right ascension:18h07m22.47s
Declination:+06°32'34.1"
Apparent magnitude:7.728
Proper motion RA:5.5
Proper motion Dec:-22.4
B-T magnitude:9.761
V-T magnitude:7.896

Catalogs and designations:
Proper Names
HD 1989HD 165761
TYCHO-2 2000TYC 442-1460-1
USNO-A2.0USNO-A2 0900-11643027
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