Click here for a higher resolution image of NGC 6744 (1.1 Mb)

 

 

The Details
Object
NGC 6744 in Pavo
Optics
Astro-Physics 12" Mak-Cass f/8
Platform
Astro-Physics 1600 Mount with absolute encoders
Camera
FLI 16803 Proline CCD
Filters
Tru-Balance LRGB Filters - Gen 2
Date
Various dates in August and September 2014
Location
Las Campanas Observatory, Chile
Exposure
L 25 x 1200 sec 1x1 bin; RGB 16 each x 600 sec, 1x1 bin
Software
ACP, Maxim DL/CCD, CCDStack 2, Photoshop CS5
Orientation
Field of View: 31' x 21' centered on RA 19h09m39.5s
DEC -63°51’13” (2000.0) . North angle 270.56°; east 90° CCW from north
Notes
NGC 6744, a large barred spiral galaxy in the southern constellation Pavo the Peacock, is one of the galaxies most similar to our Milky Way in the local universe. Lying at a distance of about 30 million light-years from Earth, its disc stretches 175,000 light-years across, making it nearly twice the diameter of the Milky Way.  If we could escape the Milky Way and could look down on it from intergalactic space, it would look very much like NGC 6744.

The small, distorted companion galaxy NGC 6744A, which is an analog to our galaxy's Large Magellanic Cloud, can be seen as a blob in the main galaxy's outer arm at a 10:30 o’clock direction from the center.

This large galaxy subtends an angle of approximately 20 arc-minutes on the night sky, roughly two-thirds the diameter of the Moon.  In a small telescope it appears visually as a faint glow imbedded within a very rich star field.

Total exposure time was 16 hours 20 minutes. This image is the result of a collaborative effort between Howard Hedlund of Astro-Physics, Inc. and Dave Jurasevich.

 

 

 

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