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Stroemgren photometry of F- and G-type stars brighter than V = 9.6. I. UVBY photometry
Within the framework of a large photometric observing program, designedto investigate the Galaxy's structure and evolution, Hβ photometryis being made for about 9000 stars. As a by-product, supplementary uvbyphotometry has been made. The results are presented in a cataloguecontaining 6924 uvby observations of 6190 stars, all south ofδ=+38deg. The overall internal rms errors of one observation(transformed to the standard system) of a program star in the interval6.5
| A preliminary compilation of DS-programme star positions
A catalog is presented of the double-star-program (DS-program) starpositions, listing right ascensions for 930 DSs and declinations for1225 DSs of the program. The positions were compiled from the observedvalues obtained between 1980 and 1987 with the meridian circles of sixUSSR observatories (the Moscow, Kazan', Kiev, Khar'kov, Odessa, andTashkent Observatories) and the Belgrade Observatory. The measurementsand the treatment of the observational material were performed using therelative method, and the FK-4 system stars were used as reference stars.
| A second list of wide visual binaries
Not Available
| Spectral Classifications for New or Unclassified Emission-Line Carbon and s, Long-Period Variable, and Double Stars.
Abstract image available at:http://adsabs.harvard.edu/abs/1961ApJ...133..920N
| Nova Herculis 1960
Not Available
| Mesures d'étoiles doubles
Not Available
| Mesures micrométriques d'étoiles doubles
Not Available
| Spectral and Luminosity Classification of the Bright Sequence Stars in the C Regions.
Abstract image available at:http://adsabs.harvard.edu/cgi-bin/nph-bib_query?1955ApJ...121...32N&db_key=AST
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Посматрања и Астрометриски подаци
| Сазвежђа: | Орао |
| Ректацензија: | 19h04m04.23s |
| Deклинација: | +14°47'01.9" |
| Apparent магнитуда: | 8.881 |
| Даљина: | 10000000 parsecs |
| Proper motion RA: | 10 |
| Proper motion Dec: | 4.4 |
| B-T magnitude: | 9.423 |
| V-T magnitude: | 8.926 |
Каталог и designations:
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