Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  NGC 67  ·  NGC 68  ·  NGC 69  ·  NGC 70  ·  NGC 71  ·  NGC 72  ·  NGC 74
Getting plate-solving status, please wait...
Arp 113, 


            Gary Imm
Arp 113, 


            Gary Imm

Arp 113

Getting plate-solving status, please wait...
Arp 113, 


            Gary Imm
Arp 113, 


            Gary Imm

Arp 113

Imaging Telescopes Or Lenses
Takahashi TOA-130NFB
Imaging Cameras
ZWO ASI 183MM Pro Cool
Astro-Physics Mach1GTO
Astrodon Green 31mm Gen2 I-Series · Astrodon Blue 31mm Gen2 I-Series · Astrodon Lum 31mm Gen2 I-Series · Astrodon Red 31mm Gen2 I-Series
ZWO EFW · Feathertouch Focuser Boss II Electronic Focusing Control · Takahashi Flattener TOA-67
Main Sequence Software Sequence Generator Pro · PixInsight · Stark Labs PHD2 2.6.3
Guiding Telescopes Or Lenses
Orion 60mm Guidescope
Guiding Cameras
Orion StarShoot AutoGuider Pro Mono

Acquisition details

Sept. 6, 2019 ·  Sept. 7, 2019
Astrodon Blue 31mm Gen2 I-Series: 30x120" (1h) (gain: 111.00) -12C
Astrodon Green 31mm Gen2 I-Series: 30x120" (1h) (gain: 111.00) -12C
Astrodon Lum 31mm Gen2 I-Series: 60x120" (2h) (gain: -12.00)
Astrodon Red 31mm Gen2 I-Series: 30x120" (1h) (gain: 111.00) -12C
Avg. Moon age:
8.22 days
Avg. Moon phase:

RA center: 00h18m21s.287

DEC center: +30°0351.83

Pixel scale: 0.493 arcsec/pixel

Orientation: 11.429 degrees

Field radius: 0.259 degrees

More info:Open 

Resolution: 3198x2004

Data source: Backyard


This rarely imaged object is a galaxy collection located 300 million light years away in the constellation of Andromeda at a declination of +30 degrees. Each of the large galaxies in this image span about 1 arc-minute in our apparent view, which corresponds to a diameter of 90,000 light years. The galaxies are designated NGC 67 through 74.

The galaxies don't appear to be much disturbed for appearing to be so close to each other, and indeed redshift data shows that none of these are as close to each other as they look. The two spiral galaxies (NGC 70 and NGC 72) are the closest large galaxies to each other, at 7 million light years.

The color shading of these objects is subtle but interesting, as the disks move from orange in the center to blue in their outer regions.



  • Final
    Arp 113, 


            Gary Imm
  • Arp 113, 


            Gary Imm


Description: Comparison to Original Arp Image

Uploaded: ...

Sky plot

Sky plot


Arp 113, 


            Gary Imm