Hemisphere:  Southern  ·  Constellation: Canis Major (CMa)  ·  Contains:  PGC149404  ·  PK242-11.1
Getting plate-solving status, please wait...
Minkowski 3-1, 



    
        

            Gary Imm
Minkowski 3-1, 



    
        

            Gary Imm

Minkowski 3-1

Getting plate-solving status, please wait...
Minkowski 3-1, 



    
        

            Gary Imm
Minkowski 3-1, 



    
        

            Gary Imm

Minkowski 3-1

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

Filters: Astrodon Ha 31mm 5nm  ·  Astrodon OIII 31mm 3nm  ·  Astrodon Green 31mm Gen2 I-Series  ·  Astrodon Blue 31mm Gen2 I-Series  ·  Astrodon Red 31mm Gen2 I-Series

Accessory: Celestron OAG  ·  ZWO EFW 2″X7  ·  MoonLite Focuser for EdgeHD 11


Dates:Dec. 28, 2020Dec. 29, 2020Dec. 30, 2020

Frames:
Astrodon Blue 31mm Gen2 I-Series: 30x120" (1h) (gain: 120.00) -20C bin 2x2
Astrodon Green 31mm Gen2 I-Series: 30x120" (1h) (gain: 120.00) -20C bin 2x2
Astrodon Ha 31mm 5nm: 24x300" (2h) (gain: 200.00) -20C bin 2x2
Astrodon OIII 31mm 3nm: 24x300" (2h) (gain: 200.00) -20C bin 2x2
Astrodon Red 31mm Gen2 I-Series: 30x120" (1h) (gain: 120.00) -20C bin 2x2

Integration: 7h

Avg. Moon age: 14.15 days

Avg. Moon phase: 98.91%


Astrometry.net job: 4180148

RA center: 7h 2' 49"

DEC center: -31° 35' 29"

Pixel scale: 0.344 arcsec/pixel

Orientation: -1.970 degrees

Field radius: 0.136 degrees


Resolution: 2334x1637

Data source: Backyard

Description

This object is a planetary nebula located 15,000 light years away in the southern constellation of Canis Major at a declination of -32 degrees. This magnitude 13 PN spans 0.5 arc-minutes in our apparent view, which corresponds to a diameter of 2 light years. I have not been able to find a previous amateur image of this object.

This bi-polar PN has two red (hydrogen) ansae that protrude from a cyan (oxygen) nebula structure. Studies have concluded that such ansae are typically generated by fast rotating close-binary central star systems, and indeed this PN has one of the shortest period orbits at just over 3 hours. Other similar PN include NGC 6210 and NGC 6309.

Because the structure of this PN is not quite symmetric, it is likely that a third star may be part of the central star system.

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