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View Full Version here: : angry robot nebula - 6 panel Eta Carinae mosaic


alocky
28-01-2018, 02:26 PM
My kids think it looks like an angry red robot! To me it looks like an bipedal form looking at two stars in their right hand.
This is a 6 panel mosaic of Eta Carina using the 16"f3.6, and each panel is 30 x 1 minute subs through L, R G and B filters. Calibration, stacking and mosaic compilation all done in pixinsight, and because I used drizzle integration (probably unnecessarily) I now have a 1Gb image. Mild decon used on the luminance prior to combination. Photometric colour balance and arcsin stretch used on the RGB. Again, mild unsharp masking on the combined result and a bit of a saturation kick.
Full resolution here
https://www.astrobin.com/full/331193/0/?nc=user
- constructive criticism welcomed, but I don't want to look at it a gain for a bit - it took three goes to get the mosaic work and I'm ready for a break from it...

multiweb
28-01-2018, 02:41 PM
Nailed it! :bowdown:

Peter Ward
28-01-2018, 02:52 PM
Gotta be happy with that :thumbsup:

Ryderscope
28-01-2018, 05:16 PM
Stunning work.

topheart
29-01-2018, 10:26 AM
Hi Andrew,
That is awesome!
Congratulations!!
Cheers,
Tim

markas
29-01-2018, 10:37 AM
Great image Andrew!

Mark

strongmanmike
29-01-2018, 12:49 PM
Nice one Andrew, really looks lovely in straight RGB...that's about the same field of view I get in one shot with the AG12 and 16803 :P

Mike

alocky
29-01-2018, 08:44 PM
Bah. 9 micron pixels wasting all that lovely resolution. I think the camera and filters for a 16803 are worth more than my scope! I'd definitely like to see what this scope could do with a 16803 - the well depth on the 8083 chip seriously limits how deep I can go.


Thanks Mark!


Cheers Tim - That mount is certainly delivering now!


Thanks Rodney!


It's still not quite as sharp as that one of yours, though :-)


Thanks Marc!

Stevec35
29-01-2018, 08:54 PM
That looks great! I have a lot of respect for people that do mosaics. I rarely have the patience.

Steve

Atmos
30-01-2018, 07:11 AM
Very nice Andrew :thumbsup:!

topheart
30-01-2018, 04:25 PM
I am very pleased that the beast has been tamed!!
Well done!
Cheers,
Tim

theodog
30-01-2018, 04:32 PM
Very impressive effort Andrew.

Seems whenever I look into this section I find myself looking at this mosaic.

Nice:thumbsup:

gregbradley
30-01-2018, 08:24 PM
Wow.

Greg.

Placidus
31-01-2018, 08:01 AM
Most excellent work, Andrew.

It's so nice to see an RGB image that has rich warm gentle sunset colours, instead of the false-obligatory harsh butcher's apron magenta and puce.

Lovely mosaic, with great fine detail.

Best,
MnT

RickS
01-02-2018, 06:16 PM
My browser seems to hang every time I click on the full res version, Andrew. Maybe I'm just not waiting long enough? I know that Astrobin has had problems with large images in the past...

APO_Team
04-02-2018, 09:03 PM
This is gorgeous !!
Well done :)

Tom

redbeard
05-02-2018, 09:25 PM
Wow, fantastic!

All I can see now is an angry red robot!

Super effort.

Cheers,
Damien

Andy01
07-02-2018, 03:05 PM
That's come up well Andrew - you should be well pleased it! :thumbsup:

alocky
07-02-2018, 07:37 PM
I'm not sure I have either, but it's one of those things that when you've committed you might as well get right!


cheers Colin!


The sad thing is that now it's working so nicely I almost forget I've got it!


Thanks - comments like that make the effort worthwhile!


Thanks Greg!



Thanks a lot Mike and Trish, but I can't take too much credit for the colour balance as I did it more or less automatically using the G2V star matching script in pixinsight.


I think it's astrobin - I can't hit the full size one either.

Thanks Tom!


Ha ha - me too, and my kids are pressuring me to have the name changed!


Thanks Andy! I can honestly say that although the raw data is courtesy of a fine set of optics, a lot of blood sweat and tears went into putting it together! I think I'll try a mosaic on M42 next...