• Spectral analysis of the background in ground-based, long-slit spectroscopy

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    • Keywords


      Atmospheric effects; planetary nebulae: general; planetary nebulae: individual (HD 44179, NGC 2022, NGC 6309, NGC 6891)

    • Abstract


      This paper examines the variations, because of atmospheric extinction, of broad-band visible spectra, obtained from long-slit spectroscopy, in the vicinity of some stars, nebulae, and one faint galaxy.

    • Author Affiliations


      Frédéric Zagury1

      1. Institut Louis de Broglie, 23 rue Marsoulan, Paris - 75012, France
    • Dates

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