Hemisphere:  Southern  ·  Constellation: Mensa (Men)  ·  Contains:  NGC 1987  ·  NGC 2010  ·  NGC 2018  ·  NGC 2031
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Strange Bedfellows - Henize N206 & friends, 



    
        

            Andy 01
Strange Bedfellows - Henize N206 & friends
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Strange Bedfellows - Henize N206 & friends

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Strange Bedfellows - Henize N206 & friends, 



    
        

            Andy 01
Strange Bedfellows - Henize N206 & friends
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Strange Bedfellows - Henize N206 & friends

Technical card

Imaging telescopes or lenses: Takahashi TOA-130 APO Refractor

Imaging cameras: QSI 6162 monochrome

Mounts: Takahashi NJP Temma-2

Guiding cameras: Starlight Xpress Lodestar Off Axis Guider

Software: Adobe Photoshop 2020  ·  Sky Safari Pro  ·  PHD2 Guiding 2.6.6 PHD2  ·  Topaz Denoise DeNoise  ·  Noel Carboni's Astro Tools for PhotoShop Noel Carboni Actions  ·  Nik Software, Inc. Nik Filters

Filters: Chroma Ha 5nm Chroma Ha  ·  Chroma Blue  ·  Chroma Green  ·  Chroma Red  ·  Chroma OIII 3nm O3  ·  Chroma SII 5nm Chroma SII

Accessory: Kendrick Standard Dual Channel Controller


Dates:Nov. 9, 2020

Frames:
Chroma Blue: 15x180" (45')
Chroma Green: 15x180" (45')
Chroma Ha 5nm Chroma Ha: 28x900" (7h)
Chroma Red: 15x180" (45')
Chroma SII 5nm Chroma SII: 21x900" (5h 15')
Chroma OIII 3nm O3: 26x900" (6h 30')

Integration: 21h

Avg. Moon age: 23.11 days

Avg. Moon phase: 39.87%

Bortle Dark-Sky Scale: 6.00


Basic astrometry details

Astrometry.net job: 4002604

RA center: 5h 29' 40"

DEC center: -70° 50' 16"

Pixel scale: 1.242 arcsec/pixel

Orientation: 176.950 degrees

Field radius: 0.579 degrees


Resolution: 2097x2619

Locations: Burwood, Melbourne, Victoria, Australia

Data source: Backyard

Description

Version 1 - Full Frame
Version 2- Crop featuring N206

I though I'd feature these quirky little chaps in the LMC - rarely if ever imaged as a quartet, they lurk surreptitiously in the shadows below the famous Tarantula nebula in the Large Magellanic Cloud. Colourful supernova remnant N206 contains a cluster of massive young stars (NGC2018) and the unique red circular pulsar wind nebula (or SNR).
N206 resides next to it's companions, N204 a Wolf Rayet Star & co.

These fascinating structures near the Large Magellanic Cloud (LMC) contain a large HII emission region referred to as LH-a 120-206 (N206) and a supernova remnant (SNR B 0532-71.0), as described by Williams et al. (2005). The SNR has an estimated age of 23,000 – 27,000 years. The main emission region is about 13 arc min long. The SNR (also often referred to as N206) is the circular structure at the far right of the main nebula.

The LMC is a small satellite galaxy gravitationally bound to our own Milky Way. Yet the gravitational effects are tearing the companion to shreds in a long-playing drama of 'intergalactic cannibalism.' These disruptions lead to a recurring cycle of star birth and star death. Astronomers are particularly interested in the LMC because its fractional content of heavy metals is two to five times lower than is seen in our solar neighbourhood. In this context, 'heavy elements' refer to those elements not present in the primordial universe. Such elements as carbon, oxygen and others are produced by nucleosynthesis and are ejected into the interstellar medium via mass loss by stars, including supernova explosions. As such, the LMC provides a nearby cosmic laboratory that may resemble the distant universe in its chemical composition.

Topaz NR was used subtly to enhance some structural details. (Incredible AI software!)

Fun Fact: This emission nebula was cataloged by Karl Henize (HEN-eyes) while spending 1948-1951 in South Africa doing research for his Ph.D. dissertation at the University of Michigan. Henize later became a NASA astronaut and, at age 59, became the oldest rookie to fly on the Space Shuttle during an eight-day flight of the Challenger in 1985. He died just short of his 67th birthday in 1993 while attempting to climb the north face of Mount Everest, the world's highest peak. :)

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    Strange Bedfellows - Henize N206 & friends, 



    
        

            Andy 01
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    Strange Bedfellows - Henize N206 & friends, 



    
        

            Andy 01
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Description: Cropped version featuring N206

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Strange Bedfellows - Henize N206 & friends, 



    
        

            Andy 01