Sh2-205 - A Horse Head in Camelopardalis

[gorann]

The moon is out and I have had two clear nights using the IDAS NBZ filters (Ha+Oiii dual band) on my Dual RASA rig. Here is the result of the second night.

This is a fairly large but mostly faint Ha emitting nebula from the Sharpless catalogue, therefore suitable for the FOV of a RASA. To me it looks like a horse drinking water with the muzzle reflecting in the water surface, so the Horse Head Nebula of Camelopardalis.

Most of the Ha emission in the image is quite faint so I binned it 2x2 (using Superpixel debayering in PI). 9 hours of integration at f/2 also helped.

So, two RASA8 with ASI2600MC and IDAS NBZ on a Mesu200. 2 x 55 exposures of 5 minutes (gain 100), totally 550 minutes (about 9 hours). Processed in PI and PS.

Cheers, Göran

 

Edited September 28, 2021 by gorann

[wimvb]

Nice! I can see a ram coming out of the shadows. One big horn to the right. The one on the left is still innthe shadow. 😉

[gorann]

Thanks Wim! Yes I cannot stop myself imagening creatures in images. Also quite striking to try different orientations. Turn it 180° and it looks like a sea creature coming up to gulp air:

 

Edited September 28, 2021 by gorann

[callisto]

5 hours ago, gorann said:

To me it looks like a horse drinking water with the muzzle reflecting in the water surface

Yeah, I can see that Goran 

 

Mark

[tomato]

Well, I can see a fast and sharp duel set up really delivering on faint targets.👍

[gorann]

1 hour ago, tomato said:

Well, I can see a fast and sharp duel set up really delivering on faint targets.👍

That's it Steve! And I found another advantage with a dual set up. If the stars in a corner looks a bit misshaped from one scope, I just pick them from the other.

Edited September 27, 2021 by gorann