Hemisphere:  Southern  ·  Constellation: Carina (Car)  ·  Contains:  IC 2581  ·  NGC 3199  ·  NGC 3247
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The cow jumped over the moon? NGC3247 (Whirling Dervish) and NGC3199 (Banana) nebulae, 



    
        

            robonrome
The cow jumped over the moon? NGC3247 (Whirling Dervish) and NGC3199 (Banana) nebulae
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The cow jumped over the moon? NGC3247 (Whirling Dervish) and NGC3199 (Banana) nebulae

Getting plate-solving status, please wait...
The cow jumped over the moon? NGC3247 (Whirling Dervish) and NGC3199 (Banana) nebulae, 



    
        

            robonrome
The cow jumped over the moon? NGC3247 (Whirling Dervish) and NGC3199 (Banana) nebulae
Powered byPixInsight

The cow jumped over the moon? NGC3247 (Whirling Dervish) and NGC3199 (Banana) nebulae

Technical card

Imaging telescopes or lenses: APM LZOS 130/780

Imaging cameras: ZWO ASI294MM Pro

Mounts: iOptron CEM70

Guiding telescopes or lenses: PrimaLuceLab 240mm guide scope

Guiding cameras: zwo asi224 mc

Focal reducers: Riccardi RIRED-M63

Software: Photoshop CC  ·  Aries Production astro pixel processor  ·  StarTools 1.7

Filters: Antlia 3.5nm Ha  ·  Antlia 3.5nm OIII

Accessory: ZWO EAF Focuser  ·  ZWO EFW 36mm  ·  PrimaLuceLab ECCO ECCO  ·  PRIMALUCE LAB Eagle 3s


Dates:May 13, 2021

Frames: 100x300" (8h 20')

Integration: 8h 20'

Avg. Moon age: 1.52 days

Avg. Moon phase: 2.60%


Basic astrometry details

Astrometry.net job: 4518983

RA center: 10h 21' 39"

DEC center: -57° 45' 54"

Pixel scale: 1.616 arcsec/pixel

Orientation: 177.950 degrees

Field radius: 1.118 degrees


Resolution: 4114x2806

Locations: Backyard, Brisbane, Queensland, Australia

Data source: Backyard

Description

Well it's probably a stretch of the imagination that the Whirling Dervish nebula on it's side looks much like a cow, but the banana nebula does look a bit like a crescent moon :-)

I originally imaged this with Ha, OIII and SII, but not happy that SII is contributing much and making processing more difficult, so in the end here I've just used Ha and OIII and processed as HOO.

Stacked by channel in APP and combined and processed in Startools with final tweaks in PS.

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The cow jumped over the moon? NGC3247 (Whirling Dervish) and NGC3199 (Banana) nebulae, 



    
        

            robonrome