Hemisphere:  Southern  ·  Constellation: Cetus (Cet)  ·  Contains:  NGC 341
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Arp 59, 


            Gary Imm
Arp 59, 


            Gary Imm

Arp 59

Getting plate-solving status, please wait...
Arp 59, 


            Gary Imm
Arp 59, 


            Gary Imm

Arp 59

Imaging telescopes or lenses: Celestron EdgeHD 11

Imaging cameras: ZWO ASI 294 MM Pro

Mounts: Astro-Physics Mach1GTO

Guiding cameras: ZWO ASI 174 MM Mini

Software: Pleaides Astrophoto PinInsight 1.8  ·  Adobe Inc Lightroom Classic  ·  Main Sequence Software Sequence Generator Pro  ·  Adobe Inc Adobe Photoshop CC 2021  ·  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: Celestron OAG  ·  MoonLite Focuser for EdgeHD 11  ·  ZWO EFW 2″X7

Dates:Aug. 13, 2021Aug. 14, 2021

Astrodon Blue 31mm Gen2 I-Series: 30x120" (1h) (gain: 120.00) -10C bin 2x2
Astrodon Green 31mm Gen2 I-Series: 30x120" (1h) (gain: 120.00) -10C bin 2x2
Astrodon Lum 31mm Gen2 I-Series: 60x120" (2h) (gain: 120.00) -10C bin 2x2
Astrodon Red 31mm Gen2 I-Series: 30x120" (1h) (gain: 120.00) -10C bin 2x2

Integration: 5h

Avg. Moon age: 5.62 days

Avg. Moon phase: 31.84%

RA center: 01h00m45s.766

DEC center: -09°1107.50

Pixel scale: 0.345 arcsec/pixel

Orientation: 11.599 degrees

Field radius: 0.114 degrees

More info:Open 

Resolution: 1996x1290

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

Data source: Backyard


This Astrobin Debut Object, also known as NGC 341, is a small face-on spiral galaxy located 200 million light years away in the constellation of Cetus at a declination of -9 degrees.  This magnitude 15 galaxy spans 1 arc-minute in our apparent view, which corresponds to a diameter of 60,000 light years.

In his Arp catalog, Dr. Arp classified this object into the category of Spiral Galaxies with Small, High Surface Brightness Companions on Arms. 

I love the arm structure of this galaxy.  Short yellow stubby arms extend out from the core before taking a 90 degree turn and flowing into beautiful blue arms sweeping around for 360 degrees.  The arms have hints of VV rows.

The big question here is whether the small blue galaxy to the left (LEDA 3627) is a companion.  No distance data is available for it.  On the one hand, the main galaxy is only slightly distorted, casting doubt on the idea of a true companion galaxy.  But on the other hand, the small galaxy color and structure looks more like a blue dwarf galaxy instead of a large distant one. 

My guess is that the small galaxy is a dwarf companion of NGC 341, one that is not quite close enough yet to cause much interaction.  This blue region also could simply be a star cloud, similar to the blue region immediately to its right, but this one seems too far from the core of NGC 341 for that.