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Atlas of the wavelength dependence of ultraviolet extinction in the Galaxy
The paper presents a collection of 115 extinction curves derived fromlow-dispersion IUE spectra. The spectra have been reduced with the useof techniques designed to reduce the effects of random noise and theinfluence of residual spectral features due to classification mismatch.The magnitudes of other instrumental and interpretational uncertaintiesare estimated. The extinction curves are presented with normalization toE(B-V) = 1 and the FUV portion (below 170 nm) is also shown for E(13-17)= 1. The atlas includes examples of extinction originating in thediffuse medium and several major nebulae and dense clouds.
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Osservazione e dati astrometrici
| Costellazione: | Fornace |
| Ascensione retta: | 03h50m20.47s |
| Declinazione: | -24°02'38.6" |
| Magnitudine apparente: | 9.343 |
| Moto proprio RA: | 0.8 |
| Moto proprio Dec: | -39.3 |
| B-T magnitude: | 9.933 |
| V-T magnitude: | 9.392 |
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