Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)
Getting plate-solving status, please wait...
Arp 148 - Mayall's Object, 



    
        

            Gary Imm
Arp 148 - Mayall's Object, 



    
        

            Gary Imm

Arp 148 - Mayall's Object

Getting plate-solving status, please wait...
Arp 148 - Mayall's Object, 



    
        

            Gary Imm
Arp 148 - Mayall's Object, 



    
        

            Gary Imm

Arp 148 - Mayall's Object

Acquisition details

Dates:
Jan. 6, 2020 ·  Jan. 7, 2020
Frames:
Astrodon Gen2 I-Series Tru-Balance Blue: 30×120(1h) (gain: 111.00) -20°C bin 1×1
Astrodon Gen2 I-Series Tru-Balance Green: 30×120(1h) (gain: 111.00) -20°C bin 1×1
Astrodon Gen2 I-Series Tru-Balance Lum: 60×120(2h) (gain: -20.00) bin 1×1
Astrodon Gen2 I-Series Tru-Balance Red: 30×120(1h) (gain: 111.00) -20°C bin 1×1
Integration:
5h
Avg. Moon age:
10.87 days
Avg. Moon phase:
83.65%

RA center: 11h03m54s.980

DEC center: +40°5058.95

Pixel scale: 0.494 arcsec/pixel

Orientation: -4.365 degrees

Field radius: 0.178 degrees

More info:Open 

Resolution: 1995x1653

File size: 729.3 KB

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

Data source: Backyard

Description

This object is a pair of colliding galaxies located a half billion light years away in the constellation of Ursa Major at a declination of +41 degrees. Nicknamed Mayall's Object, it was discovered by American astronomer Dr. Nicholas Mayall in 1940. This object spans 30 arc-seconds in our apparent view, slightly larger than Saturn to our view. Its true width is almost 100,000 light years. On the left is an edge-on galaxy, which is colliding with the face-on galaxy at right.

The small blue galaxy below and left of Arp 148 is LEDA 2171379. The bright elliptical galaxy to the left (2MASX J11042578+4050290) is about the same distance away as Arp 148. Other small galaxies are visible throughout the image.

Comments

Revisions

  • Final
    Arp 148 - Mayall's Object, 



    
        

            Gary Imm
    Original
  • Arp 148 - Mayall's Object, 



    
        

            Gary Imm
    D

D

Description: Comparison to Original Arp Image

Uploaded: ...

Sky plot

Sky plot

Histogram

Arp 148 - Mayall's Object, 



    
        

            Gary Imm