View Single Post
  #1  
Old 29-09-2014, 04:10 PM
Placidus (Mike and Trish)
Narrowing the band

Placidus is offline
 
Join Date: Mar 2011
Location: Euchareena, NSW
Posts: 3,719
Deep dive: Unfrequented part of SMC near NGC 330

Looking for something new and different in the centre of the SMC. Added 6 more hours last night. The tiny raggedy globular cluster at top left is NGC 330. The other structures are very faint, and the usual catalogues show nothing. (Any ID's welcome). Field: 30'arc, north up. Yellow: H-alpha 5hrs; Blue: OIII 5hrs, in 1hr unbinned subs. Various large, irregular bubble-shapes suggesting past stellar winds and bangs, and strong separation of H-alpha (general dense stuff) from OIII (strongly ionised thin stuff) are typical for around here. Of interest is the gold filigree of shock-front complex at about 1 o'clock from centre. Reminiscent of a disrupted SNR. The filigree is visible in [SII] (not shown) but otherwise the area lacks [SII] so we didn't include it. Let your imagination loose and see tropical fish or animal faces. Aspen 16M on CDK20. Bigger version (600K) here. Best, Mike n Trish.
Attached Thumbnails
Click for full-size image (0066 NGC 300 etc SMC Ha 5hrs OIII 5hrs small.jpg)
186.9 KB97 views
Reply With Quote