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Contains:  NGC 6058, NGC6058, PK064+48.1
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NGC 6058, 



    
        

            Gary Imm
NGC 6058, 



    
        

            Gary Imm

NGC 6058

Imaging telescopes or lenses: Celestron EdgeHD 11

Imaging cameras: ZWO ASI 1600MM Cooled Pro

Mounts: Astro-Physics Mach1GTO

Guiding cameras: ZWO ASI174MM

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

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

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


Dates:June 2, 2020June 3, 2020June 12, 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 Ha 31mm 5nm: 24x300" (gain: 300.00) -20C bin 1x1
Astrodon OIII 31mm 3nm: 24x300" (gain: 300.00) -20C bin 1x1
Astrodon Red 31mm Gen2 I-Series: 30x120" (gain: 139.00) -20C bin 1x1

Integration: 7.0 hours

Avg. Moon age: 14.90 days

Avg. Moon phase: 78.45%


Astrometry.net job: 3639267

RA center: 16h 4' 26"

DEC center: +40° 40' 57"

Pixel scale: 0.283 arcsec/pixel

Orientation: -1.055 degrees

Field radius: 0.144 degrees


Resolution: 2831x2340

Locations: Backyard (Mag 20.8 - New Moon), Onalaska, Texas, United States

Data source: Backyard

Description

This object is a planetary nebula located 11,500 light years away in the constellation of Hercules at a declination of +41 degrees. This 13th magnitude PN spans about 40 arc-seconds in our apparent view, which corresponds to an actual diameter of just over 2 light years.

I love the amount of structure that is visible in this PN. It looks to me as if numerous rings have been burped out of the blue central star. The signal is primarily OIII but there is enough Ha in regions to show up as the white highlights in this image.

The 2013 paper, “Multiple outflows in the planetary nebula NGC 6058”, by Guillen et al, says: “NGC 6058 can be described as a multipolar PN, formed by three bipolar outflows with different orientations and polar velocities of ∼68 km/s as well as by a distorted ellipsoidal inner shell with its major axis almost perpendicular to those of the other three outflows. This fourth outflow is the youngest one and appears to be interacting with the other three, creating a protruding zone that sweeps material in a region almost perpendicular to the major axes of the oldest outflows.”

I show my view of these 4 ellipses in the attached image. The yellow ellipse is the fourth, youngest sweeping outflow described above. This diagram is best visualize using the mouseover for image B.

Comments

Author

GaryI
Gary Imm
License: Attribution-NonCommercial Creative Commons
1688
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Revisions

  • Final
    NGC 6058, 



    
        

            Gary Imm
    Original
  • NGC 6058, 



    
        

            Gary Imm
    B
  • NGC 6058, 



    
        

            Gary Imm
    D

B

Description: Closeup

D

Description: Depiction of 4 bi-polar outflows

Sky plot

Sky plot

Histogram

NGC 6058, 



    
        

            Gary Imm