Study of the planetary nebula NGC 2818. I - Photometry of the central star

Astronomy and Astrophysics – Astrophysics

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Astronomical Photometry, Planetary Nebulae, Star Clusters, Stellar Spectrophotometry, Astronomical Coordinates, Open Clusters, Photographic Plates, Stellar Evolution, Ubv Spectra

Scientific paper

The results of analyses of 17 photometric photographic plates of the central star of the planetary nebula NGC 2818 are reported. The plates were exposed in 1977-78 with the 3.6 m telescope at ESO-La Silla. The V luminosity was 18.5 mag, the B-V luminosity 0.1 mag, and the U-B luminosity was -1.22 mag. The object was determined to be at a medium point in the evolution of a planetary nucleus. Whether or not the nebula is in fact collocated in the open cluster NGC 2818 could not be confirmed.

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