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Photometry of stars in the uvgr system
Photoelectric photometry is presented for over 400 stars using the uvgrsystem of Thuan and Gunn. Stars were selected to cover a wide range ofspectral type, luminosity class, and metallicity. A mean main sequenceis derived along with reddening curves and approximate transformationsto the UBVR system. The calibration of the standard-star sequence issignificantly improved.
| Polarization measurements of 313 nearby stars
The linear polarization of 313 low galactic latitude stars has beenmeasured. With few exceptions all program stars have a spectral typelater than B9 and are within 600 parsec of the sun. 181 stars aresituated at the southern sky and 132 at the northern sky.
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Osservazione e dati astrometrici
| Costellazione: | Aquila |
| Ascensione retta: | 19h37m03.67s |
| Declinazione: | +09°33'33.7" |
| Magnitudine apparente: | 8.103 |
| Distanza: | 400 parsec |
| Moto proprio RA: | 22.6 |
| Moto proprio Dec: | -23.8 |
| B-T magnitude: | 9.66 |
| V-T magnitude: | 8.232 |
Cataloghi e designazioni:
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