[John Hothersall]

SPX350 F19.5+F30.6, Mintron12V6 (GStar-Ex), Astrodon filters.

Impressed with SkyVikings image of this supermassive star which erupted in 1843 and should have gone supernova but instead remained variable with a double cloud which we now see. Mass of this star is 100-150 solar masses and one of the largest mass stars in the galaxy known.

Used a TVx3 Barlow and then a 5xPowermate above roof and the 5xPowermate had issues with heat over roof but red turned out well with Ha. The TVx3 had no such isssues taken a night earlier.

F19.5 was 2000 x 0.24sec exposure for R and 1000 each for G B Ha.
F30.6 was 1000 x 0.32sec exposure for R G B and 350 x 2.56sec for Ha.

Stacked with Registax and processed in CS3.

Thanks, John.