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Cave Nebula
SH2-112
SH2-142
SuperNova
M01 Crab
  M51 with supernova.jpg -  M51      NGC5194      Whirlpool Galaxy with SN 2011dh    visual magnitude of supernova is 14.5   distance: 23M ly     actual size: 75,000 ly     apparent size: 11'x7'  ST-8XME camera     FSQ-106EDX III scope @ 1050mm  (f/10)     AP900 mount 16 hour total exposure     LRGB 190:275:265:230 subs 10:5:5:5 binned 1:1:1:1     (1.76" per pixel unbinned)   Guiding with ST-402XME camera on 2.8" Pronto scope @ 475mm (f/6.8)   Supernova SN 2011dh was first seen the night of May 31, 2011. This image of the supernova was taken the evening of June 3. This type II supernova is the result of the explosion of a massive star whose core has suddenly collapsed. It is believed that the star was a yellow supergiant with a mass of 18-24 Suns. This is the 3rd supernova seen in M51 in the last 17 years.   
M82 with supernova
M95 with supernova
Veil
ngc 6960 Western Veil
ngc 6992 - Eastern Veil

M51     NGC5194     Whirlpool Galaxy with SN 2011dh

visual magnitude of supernova is 14.5

distance: 23M ly     actual size: 75,000 ly     apparent size: 11'x7'

ST-8XME camera     FSQ-106EDX III scope @ 1050mm (f/10)     AP900 mount
16 hour total exposure     LRGB 190:275:265:230 subs 10:5:5:5 binned 1:1:1:1     (1.76" per pixel unbinned)
Guiding with ST-402XME camera on 2.8" Pronto scope @ 475mm (f/6.8)

Supernova SN 2011dh was first seen the night of May 31, 2011. This image of the supernova was taken the evening of June 3. This type II supernova is the result of the explosion of a massive star whose core has suddenly collapsed. It is believed that the star was a yellow supergiant with a mass of 18-24 Suns. This is the 3rd supernova seen in M51 in the last 17 years.

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