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oska
22-08-2023, 01:14 PM
I've been chewing away at this for quite a while now, an eternity in my attention span. I was determined to combine the mosaic in PI as a learning exercise and had been at it, in vain, for a week. I've concluded PI is woeful AND slow at mosaics. In contrast APP knocked over in 5 minutes the bit PI choked and failed on for many hours at a time.

I have a new adoration for the CEM40ec, I threw out 2 subs (for wonky stars) in the whole project, ignoring clouds and other light problems. Floored.

https://telescopius.com/pictures/view/160060

CEM40EC on the CF tripod
Eon85 + 0.8x reducer
ASI2600MC + SV220 NB filter

2 x 1 Mosaic
360 x 300s (30hrs) 100g -10C 2x Drizzle.

NINA + APP + PI

Not happy with the colour but at this point I'm over it.

ChrisV
22-08-2023, 01:33 PM
Really nice John. That's a hard one, quite low in the sky. I thought it looked like too much sharpening (or deconvolving) but that's just the IIS reduction as the link look real nice!!

Bodon
22-08-2023, 03:30 PM
Great shot there John! Mate, thought you would do at least an 8-10 panel mosaic...Well done.
I was seriously thinking about many panels with less subs. Not sure on an outcome, just an experiment. Looks fine to me o patient one...

carlstronomy
22-08-2023, 04:28 PM
John what a super image, worth every one of those 30 hours plus the hours spent behind the computer to make it happen.

:eyepop:

oska
23-08-2023, 02:30 PM
Thanks Chris, I am blessed with pretty dark skies (b3/4) and a relatively reasonable view to the north. I feel my processing lets me down, but I'm not that fussed as I have so much fun doing it.

Cheers Steve. I'm keen to see the results of your experimentation. I was intending to take just the witch's broom but a lack of imagination as to the next target morphed it into a mosaic project. I am doing a 2x2 of the lobster in SHO and the pain (Oh the pain!) has almost cured me of mosaics :lol:

Thanks Carl, I must admit the frustration was self inflicted, I knew the answer was APP, just being stubborn.

Dave882
23-08-2023, 02:49 PM
That’s epic mate great work! Stacks of lovely detail and colours are amazing. Yeah I’m yet to see a better mosaic tool than APP, so easy it almost feels like you’re cheating lol. I’m somewhat into aquiring data on the same target but such a slow process being only above my side fence for an hour or so at a time. You’ve set a very high standard!

oska
24-08-2023, 01:27 PM
Cheers Dave. I tried to get andromeda last year the same way, an hour at a time. After what felt like ages and much frustration I resorted to moving the scope to a better position.

Doogs38
29-08-2023, 08:37 PM
I admire your perseverance, skill and equipment (n+2), John-san :-) I really like these bi-colour targets … kinda looks like the red/green 3D images I used to look at when I was a (much) younger fellow. I reckon your colours superb in both the nebula and star field; lifting the bar mate. I’m learning that getting an hour or two per night on a low northern target is actually quite doable with the ASIAIR’s ‘plan’ function and likely with NINA too. I could never figure it out with Ekos. Alex

oska
30-08-2023, 04:40 PM
Cheers Alex. I'm really enjoying this 'Norther Safari'. I assumed, mainly due to my ignorance, I couldn't get these northern objects. Laughingly, I get that 'mischievous child' feeling each time I grab something less usual, but I'm weird - obviously. I'm surprised you couldn't get ekos to do it, given that's where ZWO stole the ASIAIR software from.