On the Variability of F1-F9 Luminosity Class III-V Stars
Hipparcos Satellite photometry of F1-F9 luminosity class III-V starsindicates that most are not particularly variable. A few stars for whichfurther study is desirable are identified.
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The position corrections of 1400 stars observed with PA II in San Juan.
Not Available
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Fifth fundamental catalogue. Part 2: The FK5 extension - new fundamental stars
The mean positions and proper motions for 3117 new fundamental starsessentially in the magnitude range about 4.5 to 9.5 are given in thisFK5 extension. Mean apparent visual magnitude is 7.2 and is on average2.5 magnitudes fainter then the basic FK5 which has a mean magnitude of4.7. (The basic FK5 gives the mean positions and proper motions for theclassical 1535 fundamental stars). The following are discussed: theobservational material, reduction of observations, star selection, andthe system for the FK5 extension. An explanation and description of thecatalog are given. The catalog of 3117 fundamental stars for the equinoxand epoch J2000.0 and B1950.0 is presented. The parallaxes and radialvelocities for 22 extension stars with large forecasting effects aregiven. Catalogs used in the compilation of the FK5 fundamental catalogare listed.
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IRAS colors of normal stars
Using stars from the Bright Star Catalog, supplemented by cool dwarfstars from the Gliese catalog, that were detected by IRAS, the authorsdefine empirically the median intrinsic visual-to-infrared color indicesfor 'normal' stars as a function of IRAS wavelength, spectral type andluminosity class. Anomalously red stars are discussed. Two otherwiseundistinguished F giant stars are found with significant excesses at 12microns. Be stars differ markedly from nonemission B stars in theirV-(12) indices due to contamination of the former by free-free emission.Both B and Be stars show large dispersions in V-(25) colors that areassociated with the heating of local, but strictly interstellar, dustclouds by some of the non-emission B stars. The derived sequences ofstellar colors are closely approximated by either simple blackbodypredictions or by model-atmosphere calculations.
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Narrow-band photometry of late-type stars. II
This paper presents extensive narrow-band photometry in the Uppsalasystem supplementing earlier published mesurements so that data now areavailable for all late-type stars brighter than V = 6.05 and a number ofgalactic cluster members. Numerous UBV and BV measurements are alsopublished. The data are used to determine relations for the predictionof UBV intrinsic colors for late-type stars from the narrow-bandmeasurements. The main purpose of the data is to constitute the basisfor the determination of solar-neighborhood space densities of late-typestars, mainly giants of different kinds; these space densities will becombined with narrow-band data for fainter stars in the north Galacticpole region to yield the decrease of space density with distance fromthe galactic plane for many kinds of late-type stars.
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Radial velocities of southern stars obtained with the photoelectric scanner CORAVEL. III - 790 late-type bright stars
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1985A&AS...59...15A&db_key=AST
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RS Gru : a dwarf cepheid in a binary system.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1978MNRAS.184....1B&db_key=AST
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INHABITED SKY
