Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 17  ·  NGC 6618  ·  Omega nebula
Getting plate-solving status, please wait...
The Omega Nebula in narrowband, 



    
        

            Tim Looi
The Omega Nebula in narrowband
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The Omega Nebula in narrowband

Getting plate-solving status, please wait...
The Omega Nebula in narrowband, 



    
        

            Tim Looi
The Omega Nebula in narrowband
Powered byPixInsight

The Omega Nebula in narrowband

Technical card

Imaging telescopes or lenses: Sharpstar Optics SharpStar CF-80II EDT

Imaging cameras: ZWO ASI1600MM-PRO

Mounts: Skywatcher HEQ5 Pro GoTo

Guiding telescopes or lenses: QHYCCD Guidescope 130mm

Guiding cameras: ZWO 120MM MINI

Software: SharpCap Pro Sharpcap Polar Align  ·  PixInsight 1.8.6 Ripley Pisinsight 1.8  ·  Phd2  ·  SGPro - EQmod - PHD2 - Platesolve2

Filters: ZWO 1.25" 7nm SII  ·  ZWO 1.25" 7nm Ha  ·  ZWO 1.25" 7nm OIII

Accessory: ZWO 8 Position EFW 1.25  ·  SharpStar 2.5'' Field Flattener  ·  Pegasus Astro Pocket Powerbox  ·  Pegasus Astro Focus Cube Focuscube v1


Dates:Aug. 16, 2019

Frames: 155x300" (12h 55')

Integration: 12h 55'

Avg. Moon age: 15.65 days

Avg. Moon phase: 99.11%


Basic astrometry details

Astrometry.net job: 2919060

RA center: 18h20m37s

DEC center: -15°5855

Pixel scale: 1.474 arcsec/pixel

Orientation: 128.707 degrees

Field radius: 0.852 degrees


Resolution: 3464x2309

Data source: Backyard

Description

M17, captured over 6 separate nights from the backyard approx. 2hr+ each night after dusk as the target is only within visibility before disappearing over the house quickly after 9pm. First go at the Omega Nebula but found it challenging to process initially in hubble pallete SHO but decided on HOS as I just love the red tones for this beautiful target. Doesn't do it justice really, hope you like it.

53x Ha

52x Oiii

50x Sii

300s subs @Unity Gain

Imaged with SGPro, PHD2 guiding, Sharpcap Polar Alignment

Post processed with PixInsight, Photoshop and final crop in Lightroom

Comments

Sky plot

Sky plot

Histogram

The Omega Nebula in narrowband, 



    
        

            Tim Looi