In 2010, August, i discovered an outburst of the Be star V442 and. That was my 2nd discovered outburst during 2010 on a total of three up to date.

Unlike the others,  this outburst occurred during a period of nine month, between two observations, and last for less than 6 months. It was very short for a Be outburst.

The star return to quiescent stage recently these days.  It gave some of the most animate Be spectra i have never done.

Below are animations of my raw spectra, telluric lines removed animation spectra and finally equivalent width on 6550 6675.

More analysis would coming soon

All spectra are available on Bess

Update: