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| Photoelectric photometry of M-type stars
UBVRI photoelectric photometry was obtained for 110 M-type starscontained in the Caltech Two-Micron Survey and the revised AFGL Catalog.Of the 110 stars, 58 have a color index (B-R) greater than or equal to 4mag. A graph is given of (V-R) versus (V-I) for the present stars.
| 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.
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Datos observacionales y astrométricos
| Constelación: | Ofiuco |
| Ascensión Recta: | 17h22m55.25s |
| Declinación: | +00°52'23.7" |
| Magnitud Aparente: | 9.521 |
| Movimiento Propio en Ascensión Recta: | -8.1 |
| Movimiento Propio en Declinación: | 15 |
| B-T magnitude: | 11.902 |
| V-T magnitude: | 9.718 |
Catálogos y designaciones:
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