[vsnet-alert 8507] SN 2005cs in M51 - pre-discovery photometry

[Lubos Brat - Penzion ALENA]

Hi all,

I'm reporting unfiltered CCD measurments made by P.Marek, SKYMASTER 
Observatory (www.skymaster.cz), Czech republic

SN2005cs 20050627.917 16C: PM
SN2005cs 20050627.963 15.6C PM

On CCD images (enclosed in attachment) ther can be clearly seen, that SN is 
rapidly brightening! Time difference between this two images is only 1,5 
hour.

Best regards
Lubos Brat
- MEDUZA Group