Hemisphere:  Southern  ·  Constellation: Octans (Oct)  ·  Contains:  NGC 7098  ·  NGC7098
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NGC 7098, the Triple-Double Galaxy, 



    
        

            Russ Carpenter
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NGC 7098, the Triple-Double Galaxy

Getting plate-solving status, please wait...
NGC 7098, the Triple-Double Galaxy, 



    
        

            Russ Carpenter
Powered byPixInsight

NGC 7098, the Triple-Double Galaxy

Technical card

Dates:Aug. 30, 2019

Frames: 15x600"

Integration: 2.5 hours

Avg. Moon age: 0.08 days

Avg. Moon phase: 0.01%


Astrometry.net job: 2894137

RA center: 21h 44' 14"

DEC center: -75° 6' 47"

Pixel scale: 0.964 arcsec/pixel

Orientation: -89.898 degrees

Field radius: 0.418 degrees


Resolution: 2265x2152

Data source: Amateur hosting facility

Remote source: ChileScope

Description

This small but mighty galaxy in the constellation of Octans is a collection of doubles. First, we have a double set of spiral arms that have wrapped themselves around the galaxy’s central region. The central region itself is a double bar. And at both ends is a set of ansae (the bright spots plainly visible this image).

Ansae are found in the extremities of planetary ring systems and in nebulous clouds. In galaxies like NGC 7098, the ansae are areas jammed with stars.

This is an RGB image. For an object only 4 arcminutes wide, a lot is going on!

Tech Notes:
ASA Newtonian, 500 mm aperture, 1900mm focal length, F3.6
FLI Proline 16803, 9 mm pixel, 4096 X 4096
ASA DDM85 equatorial mount
Processing with PixInsight and Affinity Photo

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NGC 7098, the Triple-Double Galaxy, 



    
        

            Russ Carpenter