A forgotten episode of the η ~Car light curve in 1860-1865
Abstract
We have found previously unreported observations of the galactic Luminous Blue Variable η ~Car covering the period 1860-1865. Contrary to the current belief, these data suggest that the star reached the first magnitude in 1860-1862, with possible large luminosity fluctuations, followed by a steep fading in 1865. A revised historical light curve of this most interesting object is given. Paper in press in Astronomy and Astrophysics.
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