LDN673 - dark tendrils in Aquila Sidonioed

[RickS]

I have imaged this delightful object a couple of times. Once from Ten Chain Hill in 2011 and again from SRO in California in 2014. Both my attempts at processing the data were pretty woeful though I thought them OK at the time. Hopefully, I have finally done the combined data more justice this time and won't have regrets in 2017 ;)

Scope: FSQ-106ED
Mount: Paramount ME/AP900
Camera: QSI683/H-18
Filters: Astrodon Gen II LRGB (1.25")
Guiding: QSI OAG + Lodestar
Image scale: 2.094 arcsec/pixel
Exposures: L: 43x600s + 6x900s, R: 18x600s + 2 x 900s, G: 23x600s + 2x900s, B: 21x600s + 2x900s (total 13.6 hours SRO, 7 hrs 10CH)

High res version can be found on Astrobin: http://www.astrobin.com/235406/

Cheers,
Rick.

[Slawomir]

Very nice image and great processing Rick.

I was particularly intrigued by two small areas of dark cool gas lit up by the nearby stars.

Awesome work.

[RickS]

Thanks, Suavi. The one at the top is a reflection nebula, GN 19.18.0 and the one the bottom is a Herbig-Haro object, HH32.

Cheers,
Rick.

[Slawomir]

Thank you Rick for clarifying that. A great image, should look very nice as a print too! :)

[Stevec35]

Can't recall your previous efforts Rick but this one looks pretty good to me. Difficult to see how you could have done any better.

Cheers

Steve

[lazjen]

I like these types of images a lot.

Good stuff Rick. :)

[RickS]

Thanks Steve & Chris.

[Dennis]

Hi Rick

Ticks all the right boxes for me Rick, then some. Nicely processed and presented with a lot going on to keep the viewer’s interest as they scan the field.

Another one for the Boardroom methinks!:)

Cheers

Dennis

PS – the compressed jpg murders the texture and smoothness compared to the full res version.

[strongmanmike]

Beautiful image Rick, lovely light and shade and you have maintained the sparkle in the stars and the dust looks..just so inviting :thumbsup:

Hey, if I Sidonio one of my images... does that make it a selfy :question:

Mike

[gregbradley]

Nicely done Rick. The stars look great and the dust really stands out well which is not that easy to achieve.

Greg.

[RickS]

Thanks, Dennis! I always like to check out images at full res but not everyone does.



Thanks, Mikey. You need to patent that Sidonio thing and charge us all royalties :lol:



Thanks, Greg!

[Placidus]

Superb! The dust lanes give the effect of an eagle's view of a blackened tree, or perhaps a tentcled sea-monster. Lots to explore.

Is the Herbig-Haro jet the small streaky warmish coloured object at (1677,1670)?

There is a small orange rubber duck at (1775, 1095). Perhaps it is also a reflection nebula.

Nice work,
Mike

[RickS]

Thanks very much, Mike! Looks a little Cthuluish to me :)



I believe that the HH jet is at 1701,1658. The first attached image shows a small crop upsampled and rotated 90 degrees CCW to match this Hubble pic: http://annesastronomynews.com/photo-gallery-ii/nebulae-clouds/herbig-haro-32-hh-32/ Can't see the smaller/dimmer appearing jet, unfortunately. I guess you can't expect too much of a 4" scope!



Yep, that's the reflection neb GN 19.18.0 aka Bernes 16, Magakian 785, GM1-76 and RNO109 (second attached image.)

Cheers,
Rick.

[strongmanmike]

Ha ha yeah I see the rubber duck :lol: A cosmic duck in cosmic dust :P

[Placidus]

Thanks for the detailed research and references, Rick. Adds to a great shot.

[multiweb]

Love it. Very well processed, great colors in the field. :thumbsup:

[Ryderscope]

'Tis definitely good fun exploring these dark nebula. The image of the DN is nicely overlain with a bright and colorful star field. Processing looks to be spot on from my perspective. Thanks for sharing Rick.

[RickS]

Thanks Marc & Rodney.

[batema]

Beautiful Rick. Great colours and wonderful star colour.

Mark

[RickS]

Ta, Mark.

[Regulus]

The HiRes is a delight to look at. Well done.
Trev

[RickS]

Thanks, Trev!

[Paul Haese]

Nice golden star field with areas of luminosity showing through makes for a really interesting looking image. I like the brighter star colours too. Nicely done Rick.

[RickS]

Thanks, Paul!

[Shiraz]

gosh that is nice to look at - excellent.

[RobF]

Missed this earlier. Wonderful image Rick.

[Rigel003]

Just saw this. Lovely image. I like the bright blue stars against the golden background. Well done.

[RickS]

Thanks Ray, Rob & Graeme!