Hemisphere:  Northern  ·  Constellation: Draco (Dra)  ·  Contains:  NGC 6285  ·  NGC 6286  ·  NGC6285  ·  NGC6286  ·  PGC59333
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Arp 293, 



    
        

            Gary Imm
Arp 293, 



    
        

            Gary Imm

Arp 293

Getting plate-solving status, please wait...
Arp 293, 



    
        

            Gary Imm
Arp 293, 



    
        

            Gary Imm

Arp 293

Imaging telescopes or lenses: Celestron EdgeHD 11

Imaging cameras: ZWO ASI 1600MM Cooled Pro

Mounts: Astro-Physics Mach1GTO

Guiding cameras: ZWO ASI174MM

Software: Main Sequence Software Sequence Generator Pro  ·  PixInsight  ·  Stark Labs PHD2 2.6.3

Filters: Astrodon Green 31mm Gen2 I-Series  ·  Astrodon Blue 31mm Gen2 I-Series  ·  Astrodon Lum 31mm Gen2 I-Series  ·  Astrodon Red 31mm Gen2 I-Series

Accessory: ZWO EFW  ·  Celestron OAG  ·  MoonLite Focuser for EdgeHD 11


Dates:April 24, 2020April 25, 2020

Frames:
Astrodon Blue 31mm Gen2 I-Series: 30x120" (gain: 139.00) -20C bin 1x1
Astrodon Green 31mm Gen2 I-Series: 30x120" (gain: 139.00) -20C bin 1x1
Astrodon Lum 31mm Gen2 I-Series: 60x120" (gain: 139.00) -20C bin 1x1
Astrodon Red 31mm Gen2 I-Series: 30x120" (gain: 139.00) -20C bin 1x1

Integration: 5.0 hours

Avg. Moon age: 1.72 days

Avg. Moon phase: 3.54%


Astrometry.net job: 3508149

RA center: 16h 58' 30"

DEC center: +58° 56' 42"

Pixel scale: 0.281 arcsec/pixel

Orientation: -78.479 degrees

Field radius: 0.123 degrees


Resolution: 2595x1775

Locations: Backyard (Mag 20.8 - Bortle 4.5), Onalaska, Texas, United States

Data source: Backyard

Description

This object is a pair of tiny interacting galaxies located a quarter of a billion light years away in the constellation of Draco at a declination of +59 degrees. The top galaxy is NGC 6285, while the bottom galaxy is NGC 6286. NGC 6286 is the slightly larger galaxy, spanning 1.3 arc-minutes in our apparent view which corresponds to an actual diameter of 95,000 light years.

Both galaxies appear to be disturbed, likely by the interaction between them. NGC 6285 looks like it is twisted out of plane. It has a yellow core and blue arms, and what looks like a circular patch of dust at the start of the top arm. The yellowish NGC 6286 is almost edge-on, showing off an interesting dust lane pattern.

My favorite aspect of this object is the star streams, particularly what looks like a half of a polar ring that starts at the lower left arm of NGC 6286 and wraps around until it is perpendicular to the core. It fades out as it crosses the core going upward. My eyes want to connect this faint stream to NGC 6295 above. Looking at the inverted image view, I think that the connection is there but I am not 100% sure.

The ultra-thin galaxy in the upper right corner is PGC 59333, slightly further away and slightly larger in diameter at about 120,000 light years.

Comments

Revisions

  • Final
    Arp 293, 



    
        

            Gary Imm
    Original
  • Arp 293, 



    
        

            Gary Imm
    B

B

Description: Comparison to Original Arp Image

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Arp 293, 



    
        

            Gary Imm