Supernova in the Whirlpool

M51 - the Whirlpool Galaxy with supernova SN2011dh. This supernova, which is a star that explodes, occurred around May 31. This supernova is a type II supernova, which collapses under its own weight after it's nuclear fuel runs out and isn't sufficient enough to keep it stable. The compression creates a neutron core that quickly becomes degenerate and cannot take any more matter. The outer part of the star bounces off the neutron core that develops and quickly explodes it's material into space.

 

Taken with my 8" Ritchey-Chretien. Cropped from the full frame due to some nasty gradients and dark frame problems. Quick processing too, so a bit noisy. Also, the guiding wasn't great, so the stars are more egg-shaped, looks like a mount tune-up is in my future.

 

Imaging scope: Astro-Tech 8" Ritchey-Chretien

Imaging Camera: ST8300M (capture with Equinox Image)

Filters: Baader filters in FW5-8300 filter wheel

Guide scope: Astro-Tech 65 Quadruplet

Guide camera: Starfish Fishcamp (guided with PHD)

Mount: Atlas EQ-G

Calibrated in Equinox Image and processed in PixInsight.

 

L - 60min : 12x5min (1x1)

R - 30min: 6x5min (2x2)

G - 30min: 6x5min (2x2)

B - 25min: 5x5min (2x2)

 

Done