[vsnet-chat 5878] Eta Carinae update

["Sebastian Otero" <varsao@fullzero.com.ar>]

http://vsnet.gsfc.nasa.gov/news-release/releases/2003/03-004.htm

There you can read some news on the upcoming event.
Eta Carinae is currently fainter (V= 5.3) than it was during the last years.
After a fading and a steep rise that occured between 1995 and 1998, (it
wasn't
in 1999 as stated everywhere) that made the star mean magnitude grow 0.3
mag. brighter than before**, cyclic variations have been present every year.
However this last cycle is fainter than the previous one when the star rose
to V= 4.9.
I have compiled a visual lightcurve (beginning exactly when the strange
brightening came to an end) with all my observations and contemporaneous
Johnson V photometry at:
http://ar.geocities.com/varsao/Curva_Eta_Carinae.htm
Visual magnitudes have been calibrated  to the standard V system by
adjusting the zero point with help of the simultaneous observations.

** Wait for a great job on the whole photometric history of the star by
David
Frew coming soon. You'll be able to see this event clearly on the
lightcurves.

Best wishes,
Sebastian.



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