Celestial hemisphere:  Northern  ·  Constellation: Gemini (Gem)  ·  Contains:  IC 443  ·  Sh2-248
IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light., Pat Rodgers
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IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light.

IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light., Pat Rodgers
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IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light.

Equipment

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Acquisition details

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Description

Image A is the new focuser compared to the one supplied with the scope, it's more robust and can carry 6.1Kg without any flop. This is the final upgrade for a while.

Finally a clear night arrived so made a start on a 4 pane mosaic of the Jellyfish. This is the second panel with 3 hours Ha and 90 minutes of OIII. There was a strong breeze blowing through the night, but the strong northerly was in line with the target so not to many subs were lost. Hard to judge the stars until I get a calmer nights imaging.

Just a quick process of the subs. Combined as a Ha_HOO.

Comments

Revisions

  • IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light., Pat Rodgers
    Original
  • IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light., Pat Rodgers
    B
  • IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light., Pat Rodgers
    C
  • Final
    IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light., Pat Rodgers
    D

B

Description: The Ha de-convoluted stack. 3 hours

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C

Description: The Ha_HOO

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D

Description: Finally managed to get three hours per panel in early February. Then forgot about them. Bottom right panel was slightly more noisy than the other 3 panels.

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Sky plot

Sky plot

Histogram

IC 443 "The Jellyfish Nebula." In Gemini HOO. TS 8" carbon V2 power focuser first light., Pat Rodgers

In these public groups

UK Astro-Imaging