AstroGab

Astrophotographers hangout. Invite friends and notice chat bar on bottom.

Here is a picture of IC443 - The Jellyfish Nebula. IC443 is a actually a supernova remnant in the constellation of Gemini. It is about 5,000 light years from earth spans about 70 light years. It is only about 10 degrees from the Crab Nebula, another supernova remnant. IC443 looks different than most Supernova Remnants due to its compression on its eastern side (upper left in the picture). This is cause by the exploding gas colliding with a nearby molecular cloud.

February 18-21, 2012
Location: Rancho Hidalgo, NM
Telescope: TEC-140 (F7)
Camera: SBIG ST-8300M
Mount: AP900 GTO
Luminance: 24x10 minutes
Red: 9x10 minutes
Green: 9x10 minutes
Blue: 9x10 minutes

Rating:
  • Currently 5/5 stars.

Views: 62

Comment

You need to be a member of AstroGab to add comments!

Join AstroGab

Comment by Trevor Woodrow on March 3, 2012 at 7:54pm

Very cool, I appreciate the the step by step! Now could you lend me some skill too, lol! Again, well done!

Comment by Bernard Miller on March 3, 2012 at 2:36pm

Trevor,

This was a straight LRGB image using Astrodon Gen2 filters. I register and stack in CCDStack and create 3 Lum images. The regulae Lum and two deconvolution Lums; one with 30 iterations and one with 150 iterations. I blend the 30 and 150 iteration Lums in photoshop using layer masks to selectively sharpen protions of the image. Then I use high pass filter and FocusMagic to highlight selective areas using layer masks. Once I get the lum the way I like it I combine it with the RGB. I will use soft light and Lab enahncement on the color and Noise Ninja at the end using a layer mask of the inverted image.

Comment by Jordi Artigas on March 3, 2012 at 10:09am

Comment by Trevor Woodrow on March 3, 2012 at 10:01am

Can you give any insight about your processing as well? Again, well done Bernard!

Comment by Trevor Woodrow on March 3, 2012 at 10:01am

Incredible! Do you use any type of LPR filter for your lum exposures?

Comment by Bernard Miller on March 2, 2012 at 7:00am

Thanks Charles. I wasn't thrilled about the framing, but I was trying to avoid eta Gem. I had some good seeing and got some really good detail.

Comment by Conor on March 2, 2012 at 2:16am

Not sure how I missed this one. Most excellent work, Bernard. Absolutely incredible detail here of one of my favourite objects in the sky. Five stars from me.

About

© 2024   Created by Charles Dunlop.   Powered by

Badges  |  Report an Issue  |  Terms of Service