Rho Ophiuchus Complex

multiweb (Marc) · #1 20-06-2010, 08:12 PM

Here's my latest effort taken last Saturday night this past long week-end from wiruna. Bloody cold night. -3c at 2:00am. Shot with the ED80 and the WO P-FlatIV. 5 panels of approx. 1h each in 5 min subs.

It's better than my first attempt at it, the field is wider too and maybe more interesting coz this time I knew were to shoot...sort of

Although a bit noisy because it would need a lot more data I'm very happy with the colors this time and the way the mosaic turned out. There's a couple of reflections from nearby Antares too but I don't care. I still like the picture as a whole.

There's a bigger version here. [2.5MB]

Hope you like it too.

DavidU (Dave) · #2 20-06-2010, 08:21 PM

Sensational effort Marc....B1tchin'

jjjnettie (Jeanette) · #3 20-06-2010, 08:25 PM

wow, so billowy!!
Booootiful.

strongmanmike (Michael) · #4 20-06-2010, 08:25 PM

-3C huh? Ooooh cold, did ya have a freezer suit? You could get you, a bottle of red and your lappie into mine

Nice going, yes some more exposure would always be good but I see why you are happy with it

Such a great area to image...err?..but I haven't yet

Mike

peter_4059 (Peter) · #5 20-06-2010, 08:30 PM

Nice shot Marc. It's a magnificant part of the sky with so many interesting features and beautiful colours.

Peter

gregbradley · #6 20-06-2010, 08:41 PM

Wow Marc, that is a sensational image. You are indeed the Mosaic King.

The blue reflection nebula to the top right has what appears to be an elliptical shaped wave of very light blue. Is that the neb or is it a processing artifact? I haven't seen that wave before.

Greg.

David Fitz-Henr · #7 20-06-2010, 09:06 PM

Fantastic effort Marc - you've captured the subliminal beauty of the whole region and stitched it all together seamlessly!! Wonderful colours and nicely processed!! I can see 2 elliptically shaped light blue areas on the left side - are these real features? They have quite a distinct boundary.

multiweb (Marc) · #8 20-06-2010, 10:29 PM

Quote:

Originally Posted by DavidU

Sensational effort Marc....B1tchin'

Thanks David.

Quote:

Originally Posted by jjjnettie

wow, so billowy!!
Booootiful.

Thanks JJJ.

Quote:

Originally Posted by strongmanmike

-3C huh? Ooooh cold, did ya have a freezer suit? You could get you, a bottle of red and your lappie into mine

Nice going, yes some more exposure would always be good but I see why you are happy with it

Such a great area to image...err?..but I haven't yet

Mike

Thanks Mike. Nup - don't have a freezer suit. Your's very cool indeed. I believe I could also fit the tent + the scope in there. For now I ran back and forth in between the house fire place and the scope. I can't stand the cold anymore. Was born in the mountains and I've endured two life times of cold.

That's why I moved to Oz

Quote:

Originally Posted by peter_4059

Nice shot Marc. It's a magnificant part of the sky with so many interesting features and beautiful colours.

Peter

Thank you Peter.

Colours are great in this area. I love the super saturated shots of this area on the web. I wish I could have pushed my data harder but it doesn't allow it. I'll do it with the hyperstar next and hope to shoot more of the area and faster. With more photons in I'll be able to really pop all those colors.

Quote:

Originally Posted by gregbradley

Wow Marc, that is a sensational image. You are indeed the Mosaic King.

The blue reflection nebula to the top right has what appears to be an elliptical shaped wave of very light blue. Is that the neb or is it a processing artifact? I haven't seen that wave before.

Greg.

Thanks Greg.

It was a hard yakka to blend and stitch all these believe me but I seem to have a consistent routine that works now. These clear elliptical edges are reflections from antares, mostly in the blue channel. I can't get rid of them. Unless I offset or shoot from the other side of the meridian and do a difference map or data rejection. Couldn't bother with the ED80. Too slow to collect data. Might do it with the hyperstar though. But I reckon I'm in for a whole new type of reflections with that one too.

Quote:

Originally Posted by David Fitz-Henr

Fantastic effort Marc - you've captured the subliminal beauty of the whole region and stitched it all together seamlessly!! Wonderful colours and nicely processed!! I can see 2 elliptically shaped light blue areas on the left side - are these real features? They have quite a distinct boundary.

Thanks David

Yep as explained above they are reflections. I might process them out or dim them in PS later on for a repro.

h0ughy (David) · #9 20-06-2010, 11:20 PM

Nice work Marc, the result is a credit

multiweb (Marc) · #10 21-06-2010, 08:23 AM

Quote:

Originally Posted by h0ughy

Nice work Marc, the result is a credit

Thanks for the comment David.

Tom Davis (Tom) · #11 21-06-2010, 08:30 AM

I think it looks great! A classic!

Tom

Phil Hart · #12 21-06-2010, 08:47 AM

sensational marc.. you've done a great job on the mosaic. how have you laid out five frames.. is the fifth one in the middle to cover the join between the other four images?

colours look great too.. there's nothing easy about that either. more data sure.. tell me about it

multiweb (Marc) · #13 21-06-2010, 09:10 AM

Quote:

Originally Posted by Tom Davis

I think it looks great! A classic!

Thanks Tom.

Your earlier shot of the clouds of Ophiuchus is what got me off my backside and really interested in this area so thanks for the inspiration and glad you liked this rendition. I wanna try to do much better than that though as far as colors and field goes.

Quote:

Originally Posted by philiphart

sensational marc.. you've done a great job on the mosaic. how have you laid out five frames.. is the fifth one in the middle to cover the join between the other four images?

colours look great too.. there's nothing easy about that either. more data sure.. tell me about it

Thanks Phil - I have one overlaid in the middle that I shot on the other side of the meridian to get some halos out of the middle of the frame so it's in the center and you can really tell. Here's the original panels arrangement I started from.