IC410...now with tadpoles

[jase]

Hi all,

This has been on my to-do list for a while as the tadpoles look ultra cool, especially in narrowband. The surrounding area in fact is quite interesting with the disruptive nature of the open cluster. Anyway, here is my rendition of this northern hemisphere delight...

IC410 in Hubble Palette (http://cosmicphotos.com/gallery/image.php?fld_image_id=208&fld_album_id=11)

Located in the northern constellation of Auriga is the dusty emission nebula known as IC410. The nebula harbours an open star cluster known as NGC1893 in which is believed to have shaped the surrounding nebulosity due it's violent outflow of stellar winds and radiation. In the 1 o'clock position are two prominent filaments of glowing gas know as the "tadpoles" of IC410. The tadpoles have curved globular heads and tails generally point away from the open cluster as the shock wave of stellar winds pushes further from the source. Beyond the tadpoles, a shock wave bow is present. IC410 is 12,000 light years distant.

A bit of a juggling act with the hubble palette on this one given the target predominately emits in Ha, hence green dominated. I feel I've struck a visually pleasing balance. Needed to subtly desaturate the background to improve the visual impact. In hindsight, some RGB data would add a nice element to the stars...alas I'm going to settle with this result. Thanks go out to John for letting me use his robotic set up.

Enjoy! :D

[TrevorW]

Thats what I like too see a Hubble pallett where the stars ain't too pink

nice one Jase

[jase]

Thanks Trevor. They were quite pink, but with some work on the selection and masking, I desaturated them. They become too much of a distraction otherwise. RGB stars would be more appropriate however. Thanks for your comments. :)

[Bassnut]

Excellent Jase, but at your level, you would not have star fringing at all, better still, as you allude to, inserting RGB star colour would make a big diff to this image, you know how to do it, and it aint hard.

[jase]

Thanks Fred...but no star fringing at all? Please go on... I'm all ears. Adding RGB stars isn't difficult. I may collect the data for this when I get access to the scope again in the next few days...weather permitting.

[gregbradley]

Nice narrowband image there Jase. Geez you image with some gear - 16 inch RCOS, 16 inch ASA.

It looks like it could handle a larger file to zoom in on. You could also try adding some Ha set to red as a screen layer to balance the green if you wanted.

[Octane]

Jase,

Stunning. Just spent a good five minutes soaking in the detail of the maximum resolution image on your site.

Nothing further to add, really.

I am really enjoying the framing of this one. For some reason it reminds me of a cradle.

H

[multiweb]

Super shot Jase. :thumbsup: Here's a method I use sometimes on my NB pictures. Of course it will mute all colors to some extent if you don't use a star mask but it's a good way to get rid of that fringing on even the smallest stars. You get the idea anyway. It can be done much better if you spend the time on it.

[jase]

Thanks Greg. :) The gear is merely a means to the data. Like a carpenter's hammer to build a house. Indeed, the 2400x2400 was reduce to 60% to make it web friendly. I'll give your red screen layer to try to see if that tones down the green. Thanks for your suggestions.



Cheers Humayun. :) Didn't really consider the framing for this one. No need to work guide star selection as there's a separate guide scope (FSQ) doing the work. Wow, you're right, it does have the characteristics of a cradle. Cool! Thanks for your comments.



Thanks Marc. :) Will investigate the technique further. Carboni's tools messed with the data in a negative way. You're correct in that you'd need a specific mask to address the stars only. Not hard to sort out. Will give it a shot in due time unless I end up collecting RGB data instead. Thanks again.

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Thanks All.:D

[LGT150]

J'aime bien tes têtards dans ce joli lagon turquoise.
Amicalement Lucien

[Martin Pugh]

Fine detail Jase, and a nice image - but those red halos do draw the eye.

Where is that 16" ASA hosted?

thanks
Martin

[jase]

Thanks Lucien. OIII data is a gem with the turquoise lagoon. :)



Cheers Martin. Yes, the halos...strangely, I quite enjoy them. When did six filter imaging come into vogue anyway? :lol: ;) The 16" ASA is in Texas. A big scope, needs a big state...:P

:D