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Stevec35
29-01-2017, 08:00 PM
Here's an improved version of my first light Eta Carinae posted several nights ago.

Cheers

Steve

http://members.pcug.org.au/~stevec/Eta_Carinae_STX16200_RC14.htm

alpal
29-01-2017, 08:20 PM
Hi Steve,
that's fantastic.
There seems to be a lot of info in the blue channel.
It makes me want to re-process mine but the data is just not as sharp
nor the guiding so good.

cheers
Allan

strongmanmike
29-01-2017, 09:56 PM
Ah huh!!..ok then, that's a good keyhole now Steve, the first was too flat, shadow highlighty. Sheesh!..you must'ave done quuuuite a few keyholes over the year now?? :eyepop: :)
Mike

Atmos
29-01-2017, 10:05 PM
That's brilliant Steve! The Finger is always what I go for when looking at Keyhole resolution, your finger is very nice :P

Stevec35
29-01-2017, 10:22 PM
Thanks Colin



Thanks Mike. Actually Eta is not something I image very often and when I do something right with processing an image I often forget what I did the next time. Just naturally disorganized I guess.



Thanks Alan. Yes, there's a lot of OIII in this thing. Many images of it are too red so you need a bit of blue.

marc4darkskies
29-01-2017, 10:24 PM
Yep, that's the money shot Steve! Nicely done! :thumbsup:

alpal
30-01-2017, 12:06 AM
Thanks Steve,
I'll remember that.
It's very hard to compete with a 14.5" RCOS on a top mount.
Is yours the version with ion milling?
You have beautiful round stars from perfect guiding.
By the way - what did you measure as your average FWHM?

cheers
Allan

Stevec35
30-01-2017, 12:25 AM
I use the AO-X too. On a good night I'll get about 1.5 - 2" but sometimes my star shapes aren't perfect. I currently have a slight elongation in the top left corner on some frames. I suspect my collimation needs to be tweaked. Purchasing Martin Pugh's old Paramount ME helped me a lot but it wasn't cheap. You can spend a lot of money in this business.



Thanks Marcus - I agree. Don't know what I was thinking before. I have these brain snaps sometimes. perhaps it's the heat.

atalas
30-01-2017, 01:06 AM
That's turned out really nice now Steve...way more natural:thumbsup:well done.

Stevec35
30-01-2017, 02:45 PM
Thanks again Louie

Paul Haese
30-01-2017, 02:57 PM
I like this one too. The other one looked a little odd. I reckon you should do a few short subs to capture the homunculus too. It's worth doing and not hard to capture. I think I did something like 0.7 of second or thereabouts from memory.

Stevec35
30-01-2017, 07:49 PM
Thanks Paul. I might give that a try at some stage.

RickS
02-02-2017, 09:54 PM
Much improved, Steve!