Grabbed a handful of photons

[LewisM]

And added them to the previous M8 data.

http://www.astrobin.com/full/305853/B/

I can safely say it is my best image yet, which is not saying much at all :screwy:

CCDStack was giving me the sheets with registering the new data and the old data (note the weird edges), so here it is rough and dirty tonight, fresh off the press :P I'll process it again tomorrow with a refreshed set of eyes and a more attentive brain (as it is, I forgot to debayer the stack 5 times before registering...yeah....).

The whole fetid enchilada is done with an Esprit 80ED, an SBIG OSC (with Baader UV/IR and LP filters), and a veteran Vixen GPD mount. Hand focused yet again because Aus Post has decided I am not ready for my Sharp Sky Pro still...:mad2:

I dunno if the crop below is the same as the big bass-turd on Astrobin, but you get the eye-dear.

[atalas]

What.....10 words is saying too much :lol: quite nice really and showing improvement every time dude! still,I do enjoy It when your hard on yourself Lewis.....so keep It up.

ps.fix your registration problem you lazy sod!

[LewisM]

Yeah yeah yeah... gimme time....I am trying to figure out WHY it's gone apepoo on me - I might try a manual star selection, as it's centreing on the nebula core stars. Might try selecting more peripheral stars.

[LewisM]

PS: actually passed 2 hrs total integration on this - that's a record for me :)

And I haven't lost interest in finishing it yet either. I must be getting old.

[atalas]

Stop feeding It bananas....worked for me :lol:

[LewisM]

I might feed it my fist soon

[atalas]

Whats that you say sonny....your going out :fishing:

[atalas]

Try being nice to It.....then feed It your fist :P

[Atmos]

Are you saying this is better than what you got with your FSQ106N? ;)

[atalas]

No....he saying It's hungry and he's going to feed It!

[LewisM]

You extrapolated THAT from the mean or the median Col? :P

[atalas]

:lol:

[Atmos]

Or maybe from...



:lol:

[Octane]

Excellent.

What's your next target?!

H

[LewisM]

Gordon :D:lol::rofl::welcome:

[Slawomir]

A nice result Lewis :thumbsup:

I think your issues with registration are due to a tilt in your optical train, and perhaps also spacing needs fine-tuning. Data processing looks very good.

[Octane]

lol. You're welcome to pop round!

H

[LewisM]

Tilt maybe but don't think so. Not spacing. Examining individual subs shows a flat field.

I also changed uv/IR filters since the prior run so that threw off my standard focus position and other issues.Oddly the Baader uv/IR gave worse results than the $100 cheaper Optolong! Swapping back and will use the Baader for visual

[RickS]

Looks a bit like the Lagoon? :lol:

[LewisM]

Not much

[cometcatcher]

Wot registration problem? Looks good to me. My eyes must be getting worse.

[LewisM]

Ran it a hundred times now - it's the second set of data with the new Baader UV/IR filter causing the issue - seems ONE of the 2 filters is NOT optically flat, and as such, despite even using FFT routines, the 2 will NOT register properly. I redid the first set of data with some new processing techniques I relearned (thanks Louie!), and I believe those to be superior to the Baader UV/IR set (sharper stars and less halation/bloat with the Optolong!). So, as I mentioned, the Baader is now relegated to the visual role in the front of my Baader Maxbright.

Looking at the 2 sets layered directly on top of each other, the scale is SLIGHTLY different. It would appear that the Baader is disturbing the flattener, altering the optimal spacing, whereas the Optolong did NOT. In my original calculations when having the adapter made, I DID shorten the length by 1.4mm to account for the approx. 0.7mm of each glass substrate, and that worked precisely with the Baader LP/Opto UV mix, but NOT the Baader/Baader.

Long story short, reverting to the Optolong LOL

[cometcatcher]

Maybe that's part of my problem with elongated stars also. I often use a couple of different filters for various subs.

[LewisM]

Here is a reprocessed stack from the first run. The now missing 1 hr 20 mins from last night has seen a significnt decrease in dynamic range (red cannot be pushed as smoothly) and increase in noise (it was nicely smoothed out with the entire set).

Now to grab them photons all over again and re-wrangle them.

Here is a lossy JPEG version.

[Slawomir]

Lewis, you certainly have a tilt. Bottom left has the tightest stars (at a correct spacing), while top right, bottom right and top left have soft stars (incorrect spacing from the corrector due to tilt), and those three corners have elongated stars.

The latest version seems to have nice stars though, but can be due to low res image at IIS.

[astronobob]

Pretty decent Lewis :thumbsup: Credit due where credit is due :thumbsup:
And having put your sense of humour through the initial post , ,
I know what your sayin', , :thumbsup:
Good stuff, as they say : when the going get tough, the tough get going ??
Doing betterra than this duck :thumbsup: I'm a 'bout as tough as wet toilet wipe, :rofl:
Look forward to more ...