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Old 21-05-2016, 03:23 PM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline
 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Gum 41: What the chicken is running from

Gum 41, on the south-western outskirts of the Lambda Centauri nebula.

We see what might be the head and body of a huge cricket, complete with eyes and "shocking" mouth-parts. Or perhaps a rearing spice-worm, ready to devour.

We guess that this is a relatively young star-forming region on the grounds that it is extremely weak in OIII and SII. We here present H-alpha only.

5 x 1 hr subs. Aspen CG16M on 20" PlaneWave. Field about 36'arc across.

Original image here.

(Attached is a thumbnail showing the very sparse OIII. Yellow Ha 5hrs, Blue OIII 5hrs. We decided not to pursue that avenue further.)

Be mildly nervous! Be very mildly nervous!

Best,
Mike and Trish
Attached Thumbnails
Click for full-size image (Gum 41 Ha 5hrs thumb.jpg)
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Click for full-size image (Spice Worm Ha OIII  thumb.jpg)
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