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multiweb
21-03-2020, 05:21 PM
I had a really good time imaging a couple of hours on Eta last night and a bit of Rosette. Warm night with decent transparency, no wind, so so seeing and loads of mozzies. Gear thankfully worked alright out of the box and I had no major problem but for poor polar alignment. I go too excited and wanted to get into it straight away. Withdrawal symptoms and cutting (small) corners. ;)

So this is 2h in IR in 5min subs with the old Q and a QHY9 @-20c.
I did a blend with a Sii channel I had so that's IR SiiIR Sii. That's the palette that gives the most pleasing colors. I need to find a LUM. LUM will overlap IR a little. Sii cuts off well before 700nm and IR kicks in at 700nm onwards so there's no clear overlap.

I did the registration in Prometheus and stacking in CCD Stack. Blended the channels in PS.

There's a full frame 1:1 here [3073x2155 - 5.6MB] (http://www.astropic.net/astro/NGC3372_IR_SiiIR_Sii.jpg)
HD version here [1920x1346 - 3MB] (http://www.astropic.net/astro/NGC3372_IR_SiiIR_Sii_HD.jpg)

Enjoy the views. :thumbsup:

Placidus
21-03-2020, 05:29 PM
IR-SII is an unusual experiment. Experiments are good. Bravo!

The infrared gives the most tiny, pinpoint stars. :thumbsup:

Sunfish
21-03-2020, 06:51 PM
Very pleasing colour palette. An inventive combination.

codemonkey
21-03-2020, 08:26 PM
Nice one Marc, can't say that I've seen that combination of filters on this common target. Thanks for sharing!

Andy01
21-03-2020, 09:25 PM
In Spock’s words- Fascinating!
Well worth the effort- some interesting concepts to explore there. :thumbsup:

multiweb
22-03-2020, 08:43 AM
Thanks mate. :thumbsup: Pretty colors, more stars revealed usually obscured by dust and other stuff, and slightly different shapes and structures.

Some are tiny or the same sizes while others that are relatively small just blow out in IR.


Thanks Ray. :thumbsup:

Thanks Lee. :thumbsup: Usually I use a LUM but got to dig one done with the FSQ.



It is only logical. :thumbsup:

ChrisV
22-03-2020, 10:29 AM
I'm liking it Marc. Mothers of Invention !

gregbradley
22-03-2020, 03:24 PM
I like the golden stars. An interesting experiment and worth the effort.

Greg.

multiweb
23-03-2020, 03:10 PM
Thanks guys. :thumbsup: Something else to do when data starved.

peter_4059
23-03-2020, 07:12 PM
Hey Marc,

Eta sure takes on a different look in those wavelengths. A lot more yellow and blue. :question: wait a minute ... yellow + blue makes ....

Great vista as always!

multiweb
24-03-2020, 10:15 AM
:lol: Thanks mate. :thumbsup: Not even gonna go there. :P