IC1396 - Esprit 80

[AbsolutelyN]

First attempt at the Elephant's Trunk Nebula, approx 18 hours with Esprit 80 and 1600mm taken under almost full moon over 3 nights. Any feedback for improvements much appreciated. 

 

Updated processing


Original

 

Edited September 19, 2019 by AbsolutelyN

[alan potts]

Wow that's different almost 3D, great shot there.

Alan

[Adam J]

2 hours ago, AbsolutelyN said:

First attempt at the Elephant's Trunk Nebula, approx 18 hours with Esprit 80 and 1600mm taken under almost full moon over 3 nights. Any feedback for improvements much appreciated. 

HA
58x5min
30x10min

OIII
39x5min
10x10min

SII
27x5min
9x10min

Very nice, 

What made you chose to use two different exposures per band for this image?

Adam 

Edited September 17, 2019 by Adam J

[AbsolutelyN]

Thanks. Had guiding issues at first, then went to 10mins last night after fixing that and also after capturing 10 min darks on cloudy night at weekend. Mostly just to experiment though.

[coatesg]

Very nice!

Depending on what your gain was (ie what the read noise was) you may not find any appreciable benefit from going from 300 to 600sec for an equivalent total exposure. As long as the background sky level swamps the read noise, then there's very little difference in the outcome, and you potentially avoid guiding issues at the expense of a larger volume of data. 

[AbsolutelyN]

Gain was 200 and offset 50. I've not properly compared the stacked 5 mins to stacked 10 mins to know if 10 mins is worth it or not yet.

[AbsolutelyN]

Updated processing 

[tooth_dr]

22 minutes ago, AbsolutelyN said:

Updated processing 

I'm loving that!  The bright highlights in and below the trunk are awesome.

[Adam J]

1 hour ago, AbsolutelyN said:

Updated processing 

 

Like the processing but would like to see the full resolution version. 

[Mr Spock]

Great looking image. I like the delicate processing, it makes detail stand out really well.

[AbsolutelyN]

41 minutes ago, Adam J said:

Like the processing but would like to see the full resolution version. 

Full res here -https://www.astrobin.com/full/e2ifzm/B/?real=&mod=

[Adam J]

On 18/09/2019 at 18:04, AbsolutelyN said:

Full res here -https://www.astrobin.com/full/e2ifzm/B/?real=&mod=

what filters type / brand did you use?

[AbsolutelyN]

11 hours ago, Adam J said:

what filters type / brand did you use?

Just the standard 7nm ZWO narrowband filters - newer version. 
https://www.firstlightoptics.com/zwo-filters/zwo-125-ha-sii-oiii-7nm-narrowband-filter-set.html

[mattjanes100]

Great depth on this, looks very nice