The Details
Object
NGC 6188 in Ara - Narrowband Bicolor
Optics
Astro-Physics 12" Mak-Cass f/8
Platform
Astro-Physics 1600 Mount with absolute encoders
Camera
FLI 16803 Proline CCD
Filters
Tru-Balance 5 nm H Alpha Filter/3 nm OIII Filter
Date
9/14/18 June 2014
Location
Las Campanas Observatory, Chile
Exposure
Ha 16 ea x 1200 sec,1x1 bin; OIII 10 x 1200 sec, 1x1 bin
Software
ACP, Maxim DL/CCD, CCDStack 2, Photoshop CS5
Orientation
Field of view: 50' x 44' centered on RA 16h40m38s
DEC-48°46'24" (2000). North angle 90.4°; east 90° CCW from north
Notes
This is a false color narrowband image of NGC 6188 utilizing H-alpha and OIII data in a bicolor combine technique.  Dark towers of interstellar dust highlighted against a backdrop of ionized gas create a scalloped effect hinting at a three dimensional perspective.  Informally known as the Great Wall of Ara, NGC 6188 is truly one of many fine examples of deep sky wonders in the southern skies.

 

 

 

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