Sagittarius/Scorpius Milkyway widefield in Infrared

[multiweb]

Good run of clear in Sydney for the next few nights so time to mosaic. I have the 100mm lens with the QHY9 setup on the pier until this week-end. Here's 13x10min centered on the lagoon with an Astronomik IR 700nm filter. Somehow unrecognisable so I have attached a similar Ha shot of the area so you can get some pointers.

Still have to shoot calibration subs tonight. It's taking shape. Looks a lot different from Ha or visible. Most of the DSOs, Lagoon, Trifid, etc... just disappear. The dark dust is still there but a lot more stars in it. The field is centered on M8. You can guess it's there with the bright cluster and also M20 to the left. All is left of the nebulae under M8 is the dark dusty outline of the foot print.

There's a bigger one here (http://www.astropic.net/astro/Sagittarius_IR_100mm_HD.jpg). [1.9MB].

Seeing wasn't too bad last night but it's forecast to deteriorate tonight. Hopefully it won't affect this too much given the image scale.

PS: Added 3 more panels last night. Figured out I only need to do 1h on each to kill the noise so I went around much faster this time. :)

If you're on the NBN click here (http://www.astropic.net/astro/mw_ir_fff.jpg)[13MB] :P
Otherwise HD is here (http://www.astropic.net/astro/mw_ir_ff.jpg). :)

Platesolve is here (http://www.astropic.net/astro/mw_ir_ff_T.jpg).

[RickS]

Interesting comparison, Marc! I can still see the "Foot."

[multiweb]

The Craw?... :eyepop: :lol:
PS: You should be able to see the swan now and a bit of the eagle core.

[multiweb]

Here's some more IR this time in the Scorpius area. I wanted to see what the prawn, dark tower, wolf nebula and NGC6188 in Ara looked like in infrared.

The seeing wasn't as good as two days ago and some clouds mid-run and planes got me finishing in the trees after reshooting panels over again, lower on the horizon. Finally hit the trees. I thought I iced up at first then I remembered trees look white in IR. :doh:

So a little noisy in parts and not as contrasty but still some cool details and interesting to see a well known area in a different light.

NBN afficionados here (http://www.astropic.net/astro/mw_scp_ir_ff.jpg)[6MB]
or HD here (http://www.astropic.net/astro/mw_scp_ir_HD.jpg)[1.9MB]
Plate solve is here (http://www.astropic.net/astro/mw_scp_ir_HD_T.jpg).

[stevous67]

Had a good time sifting through your data Marc, nice and clean.

Steve

[Ross G]

Very interesting captures Marc.

A new view of a great part of the sky.

I like the comparison.

I'd love to see more.

Good luck.

Ross.

[multiweb]

Thanks Steve :thumbsup: Glad you liked it.


Thanks Ross. :thumbsup: I have a lot of hours on the LMC still to come.

[naskies]

Very nice, Marc! A bit of a haunted house feeling... where are all the nebulae?? :lol:

[multiweb]

Thanks mate. :thumbsup: Friday night. Gone out partying. :cool: