Hemisphere:  Southern  ·  Constellation: Norma (Nor)  ·  Contains:  NGC 6164  ·  NGC 6165  ·  NGC6164  ·  NGC6165  ·  PK336-00.1
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NGC 6164 HOO, 



    
        

            Tom Peter AKA Astrovetteman
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NGC 6164 HOO

Imaging telescopes or lenses: Takahashi TOA-150 Takahashi TOA 150

Imaging cameras: FLI ML16200

Mounts: Astro-Physics 1600 with Absolute Encoders A-P 1600GTO-AE

Guiding telescopes or lenses: Takahashi TOA-150 Takahashi TOA 150

Filters: Chroma technology OIII 3nm 50mm Unmounted  ·  Chroma technology Ha 3nm 50mm Unmounted  ·  Chroma technology Luminance 50mm Unmounted  ·  Chroma technology Red 50mm Unmounted  ·  Chroma technology Green 50mm Unmounted  ·  Chroma technology Blue 50mm Unmounted


Dates:Feb. 13, 2021

Frames:
Chroma technology Blue 50mm Unmounted: 18x600" -25C bin 1x1
Chroma technology Green 50mm Unmounted: 10x600" -25C bin 1x1
Chroma technology Ha 3nm 50mm Unmounted: 17x1800" -25C bin 1x1
Chroma technology Luminance 50mm Unmounted: 21x600" -25C bin 1x1
Chroma technology OIII 3nm 50mm Unmounted: 16x1800" -25C bin 1x1
Chroma technology Red 50mm Unmounted: 13x600" -25C bin 1x1

Integration: 26.8 hours

Darks: ~25

Flats: ~25

Bias: ~50

Avg. Moon age: 1.68 days

Avg. Moon phase: 3.16%

Bortle Dark-Sky Scale: 1.00


Astrometry.net job: 4220986

RA center: 16h 33' 41"

DEC center: -48° 4' 58"

Pixel scale: 1.130 arcsec/pixel

Orientation: 5.506 degrees

Field radius: 0.904 degrees


Resolution: 4500x3600

Locations: Deep Sky West-Chile, El Sauce, Chile

Data source: Amateur hosting facility

Remote source: DeepSkyWest

Description

NGC 6164, at the center of the field, appears to be a planetary nebula, however it is classified as a bipolar nebula in the Southern constellation Norma. It is called a bipolar nebula due to the central star which is an extreme O-type star (HD 148937)with a mass of around 40 solar masses, similar to a Wolf-Rayet star thus being a mass-loss star causing the bipolar nebula. The nebula lies at a distance of 4,200 light-years from Earth and is about 4.2 light-years across. The beautiful filamentary outer halo was probably caused by an earlier active phase of HD 148937.
This image is just HOO (8.5 hours Ha and 8 hours OIII) with only the stars being RGB data. I'm going to redo it blending the RGB and Narrowband but this is what I've got, so far.
Anyway, hope ya like it!
Tom

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NGC 6164 HOO, 



    
        

            Tom Peter AKA Astrovetteman