NGC 2403

Tzetze

Spent a few nights last week gathering photons in the light bucket. A fine looking galaxy with a rather uncatchy name. I'm still getting to grips with Photoshop and am not sure about the processing job so far - might be a tad overcooked. I hope to revisit it some time soon and get some longer exposures to bring out some more detail in the very outer dust lanes. Criticism is very much welcome.

3h 40m total exposure
60s and 120s subs @ ISO 800
Canon 450D + 10" Newt @ f4.7
Unguided

(click for larger)

dbran

Hi

Thats very good for unguided for 60s 120s. What mount are you using?

If I was to be picky (and I'm not trying to be) there is just a a small bit of Coma creeping into the shot towards the edges.

Regards

dbran

Drake66

That is absolutely incredible.

ThatDrGuy

Thats very very good. I need to get to grips with photoshop. Can I ask you what you used to get the long exposures ?

Tzetze

dbran wrote: »

Hi

Thats very good for unguided for 60s 120s. What mount are you using?

If I was to be picky (and I'm not trying to be) there is just a a small bit of Coma creeping into the shot towards the edges.

Regards

dbran

Thanks dbran.

Mount is the CG5-GT. It struggles under the payload and to get any decent subs at all is hard work. I need still nights, and use a huge fishing umbrella to shield the scope from any small breeze. Unfortunately, I don't have a spare grand for a NEQ6 or CGEM so I won't be able to autoguide the 10" Newt for the foreseeable future.

Planning to get an 80mm Apo Refractor early in the new year, so should be good to go as far as autoguiding is concerned.

Aye, there is coma in the edges. The shot has already had a fair bit of cropping, but wanted to leave a large-ish star field in there. Coma is to be expected with newts though. A corrector will have to wait until other priorities are knocked off the shopping list!

Drake66 wrote: »

That is absolutely incredible.

Thanks Drake.

ThatDrGuy wrote: »

Thats very very good. I need to get to grips with photoshop. Can I ask you what you used to get the long exposures ?

Thankyou ThatDrGuy. I was apprehensive wrt getting to grips with photoshop, but found some great tutorials on astrocasto.blogspot.com that helped explain things very well.

To get the long exposures I used a motorised mount along with Astro Photography Tool software.

dbran

Hi

What did you use to stack all the subs?

Regards

dbran

Tzetze

DeepSkyStacker

Cork boy 55

pretty thank you space watcher