M27 – Dumbbell Nebula

Subject: M27 - Dumbbell Nebula
Telescope: Celestron CPC 800 with f/6.3 reducer
Camera: Canon Rebel T1i
Technique: 20 lights between 1600 and 6400 ISO with varying exposures. Total exposure time of 10 minutes 18 seconds. 5 darks. 52 biases.
Prime focus. Stacked with Deep Sky Stacker. Post-processing in photoshop.

I had a small window tonight between when the sun set and the clouds rolled in where there was a clear sky. This gave me the chance I had been waiting for to use my new 2″ visual back which almost completely removed the vignetting seen in my most recent photographs.

I am very happy with the result. Thanks to some adjustments to my camera, the new visual back, and especially the f/6.3 reducer, I was able to successfully stack 20 frames. This allowed me to have an effective exposure time of over 10 minutes. It also removed most of the noise. M27’s location in our galactic core is also apparent due to the large density of stars I was able to pick up. By and large, this is one of the best images I’ve taken so far. With what I’ve learned from it, I am hoping to reproduce this level of quality in the future.

3 comments to M27 – Dumbbell Nebula

  • Sarah  says:

    This one is great, I love how you can even see some of the red (hydrogen?) around the edges!

  • Scott Holcombe  says:

    Amazing!!! Excellent work bro very impressive!

  • Karla  says:

    absolutely beautiful! Who can deny a creator?! …and a very talented son!

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