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HD 243750

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Einigen uberarbeitete und neue Vergleissternkarten. Not Available
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.
SiO Maser Sources in the Outer Disk of the Galaxy Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1996ApJS..106..463J&db_key=AST
The 70th Name-List of Variable Stars Not Available
A Bright Nebular Variable in Taurus Not Available
Three New Red Variables Not Available
Lunar occultations of IRAS point sources, 1991-2000 Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1989ApJS...69..651C&db_key=AST
A new variable and a rediscovery. Not Available
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 stellar component of the galaxy as seen by the AFGL infrared sky survey The noise-limited magnitudes for the Air Force Geophysical Laboratory(AFGL) Infrared Sky Survey have been estimated by direct comparison withground-based observations. Using these limiting magnitudes, 'pruned'versions of the AFGL catalog have been generated. Infrared observationsof all the stellar objects seen at 11, 20, or 27 microns and astatistical sample of the stars seen only at 4 microns are reported.Analysis of the observations leads to estimates of the absolute 4 and 10microns magnitudes and space densities for the two clases of objects.The expected results from the Infrared Astronomical Satellite arereexamined.
Classification of 831 two-micron sky survey sources south of +5 degrees. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1975AJ.....80.1011H&db_key=AST
Low-dispersion spectroscopic classification of the unidentified sources in the Two-Micron Sky Survey. Abstract image available at:http://adsabs.harvard.edu/abs/1973AJ.....78..389V
The Distribution of the BD M-Type Stars Along the Galactic Equator. Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1958ApJ...128..510N&db_key=AST

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Osservazione e dati astrometrici

Costellazione:	Toro
Ascensione retta:	05^h27^m18.88^s
Declinazione:	+23Â°06'24.5"
Magnitudine apparente:	9.503
Moto proprio RA:	-5.9
Moto proprio Dec:	-0.7
B-T magnitude:	11.838
V-T magnitude:	9.696

Cataloghi e designazioni:

Nomi esatti	(Edit)
HD 1989	HD 243750
TYCHO-2 2000	TYC 1848-1035-1
USNO-A2.0	USNO-A2 1125-02424765

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