Abstract
THE interstellar feature of KI (λ7699 Å) has been observed in the direction of Nova Cygni 1978 with an equivalent width of Wλ≃116 mÅ and has been used here to deduce a colour excess of E(B−V) = 0.38 ± 0.08 mag. The distance–reddening law to the nova is derived from a sample of stars in the nearby field surrounding the nova. The nova seems to be at a distance of r≃3.3±0.6 kpc with a corresponding absolute visual magnitude at maximum light of MVo≃−7.5±0.5 mag. Nova Cygni 1978 is classified as a fast galactic nova on the basis of its absolute magnitude at maximum light and the rate of decline towards minimum light.
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SLOVAK, M., VOGT, S. Interstellar reddening and distance of Nova Cygni 1978. Nature 277, 114–116 (1979). https://doi.org/10.1038/277114a0
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DOI: https://doi.org/10.1038/277114a0
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