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Shane Yarnall

LDN 1622

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M17 with 140F7.5 refractor

Started by RolandC, 07/23/2007 03:37PM
Posted 07/23/2007 03:37PM Opening Post
We had a clear night and i was able to get a few shots off before the nebula sank into the south-western horizon. I will probably re-shoot this one to include S2 line also.

2x20 minute exposure 140F7.5 refractor at F5.7. Red = H-a, green = 1/2(Ha + O3), blue = O3. This is a crop of the full size image.

Rolando

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RolandC's attachment for post 37987
Posted 07/23/2007 03:38PM #1
Full image reduced to 1/4 size.

Rolando

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RolandC's attachment for post 115561
Posted 07/23/2007 05:25PM #2
Very nice, the camera works well with the new refractor! grin

[SIZE="Large"][/SIZE][COLOR="Blue"][/COLOR] Floyd Blue grin
Amateur Imager
Posted 07/23/2007 09:18PM #3
Great shot Roland! 8)

Ivan Gastaldo 8)
Coconut Creek, FL

Ivan's Observatory
Lat 26N 16' 48" Long 80W 10' 48"
[COLOR="Red"]Personal Website:[/COLOR] http://www.ivangastaldo.com

CCD Imaging and Processing/Deep Sky - Moderator
I like to complain about everything - Moderator
Posted 07/23/2007 09:20PM | Edited 07/23/2007 09:23PM #4
Very dramatic and incredibly sharp image.

Do you have plans to increase production of this like you did with your mounts?

Greg.
Posted 07/26/2007 10:32PM #5
I added 3 hours of S2 to my Ha-O3 data to get something similar to the Hubble palette (red = S2, green = Ha, blue = H3). I am not entirely happy with the results at this point, but with no clear skies to add more data, this is the result.

Rolando

Attached Image:

RolandC's attachment for post 115646