Up to January 6, 2007
HR Carinae: This star is an SDOR variable, very massive and unstable stars surrounded by envelopes ejected by themselves. HR Carinae peaked at 6.7 by the end of August 2001. That maximum was the brightest ever recorded. Note that the star was very much fainter (V= 7.7) by April 1999.
This brightening was superimposed to an impressive and longer rising trend that started more than 30 years ago and got specially noticeable by 1990.
This is the long-term lightcurve (data from a lot of sources, see figure) that makes this brightening apparent:
Volver a Curvas de Variables - Carta HR Car - Carta HR Car (brighter than 7.0)