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© D Elijah
Credit Please credit D Elijah if you are using this image.

M27 Dumbbell Nebula


spaceman_spiff

The Dumbbell nebula (M27). Processed using DSS. 

Hardware details: Camera: Canon 600D. Telescope: SW Evostar 120 with Baader UHC-S filter. Mount: AZ-EQ6 guided using a ST80 synguider. Image details: Lights: 40 x 3min at ISO 800, Darks: 20 x 3min 0 sec at ISO 800 (from dark library), Lights and darks separated by 30 sec intervals. Flats: 50 x 1/50s at ISO 800, Bias: 50 x 1/4000 at ISO 100

Date of capture 05/06/2016. Atmospheric transparency was good. Auto guiding was stable.

I increased the saturation by 25% and manually aligned the colour channel histograms. I stretched the red colour histogram more than the green or blue to increase its contrast. The 600D is astro modded so does pick up H alpha in the red so the result is far better than the old D200. 2x drizzling was done on this stack.

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Please credit D Elijah if you are using this image.

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© D Elijah
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9 hours ago, Starwiz said:

Very nice image!  

John

Thanks John,

It's my first stack with an astro-modded dslr. 

Dan.

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I think it's your best picture.  I've also recently bought an astro-modded dslr, but Mrs Starwiz won't let me have it until Father's day.  At least it's only about 8 days away now! 

John

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10 hours ago, Starwiz said:

I think it's your best picture.  I've also recently bought an astro-modded dslr, but Mrs Starwiz won't let me have it until Father's day.  At least it's only about 8 days away now! 

John

I agree, the astro modded 600D picks up so much more H alpha in M27 than my old Nikon. The Canon also has far less dark noise and a flatter field. I can't wait for another clear night!

I want to continue my efforts with the crescent nebular to see how much detail I can get (I only got 2 light frames before dawn twilight). 

Dan

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I bought the Canon 1200D.  I can't wait to get started as I've never done the dark side before, just planetary with the ASI120mc which I will now be using for guiding with DSOs.  

John

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On 10 June 2016 at 13:55, Starwiz said:

I bought the Canon 1200D.  I can't wait to get started as I've never done the dark side before, just planetary with the ASI120mc which I will now be using for guiding with DSOs.  

John

Strangely, I am coming from the opposite direction! I have only really done DSOs but I just bought an old EOS 550D for planetary work (it has a 1:1 pixel movie crop mode). Hopefully when it is attached to my Skymax 150 + 2x Barlow I should get a nice result. 

DSO work is great fun but I find it is quite a hand off experience. I set the guiding, start the exposures and retreat indoors. I now want to use that time setting up a planetary cam. :icon_biggrin:

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6 hours ago, spaceman_spiff said:

Strangely, I am coming from the opposite direction! I have only really done DSOs but I just bought an old EOS 550D for planetary work (it has a 1:1 pixel movie crop mode). Hopefully when it is attached to my Skymax 150 + 2x Barlow I should get a nice result. 

DSO work is great fun but I find it is quite a hand off experience. I set the guiding, start the exposures and retreat indoors. I now want to use that time setting up a planetary cam. :icon_biggrin:

I think you'll find imaging the planets a lot easier.  I haven't tried the DSOs yet, but there seems a lot more to it, from what I've read.  

Good luck and good seeing, I'll look forward to seeing your images.  

John

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5 hours ago, Galatic Wanderer said:

Lovely image!

Cheers, I like to compare this with the earlier one I did using a non-modified camera. I think I went a bit crazy stretching the red channel to show H alpha detail. I'll tone it down in my next photos!

Dan.

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