Celestial hemisphere:  Northern  ·  Constellation: Hercules (Her)  ·  Contains:  NGC 6058  ·  PK064+48.1
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NGC 6058, Gary Imm
NGC 6058, Gary Imm
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NGC 6058

Getting plate-solving status, please wait...
NGC 6058, Gary Imm
NGC 6058, Gary Imm
Powered byPixInsight

NGC 6058

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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.

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    NGC 6058, Gary Imm
    Original
  • NGC 6058, Gary Imm
    B
  • NGC 6058, Gary Imm
    D

B

Description: Closeup

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D

Description: Depiction of 4 bi-polar outflows

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NGC 6058, Gary Imm