Hemisphere:  Southern  ·  Constellation: Scorpius (Sco)  ·  Contains:  NGC 6357  ·  the War and Peace Nebula
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Lobster Nebula NGC6357 in SHO narrowband, 



    
        

            robonrome
Lobster Nebula NGC6357 in SHO narrowband
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Lobster Nebula NGC6357 in SHO narrowband

Getting plate-solving status, please wait...
Lobster Nebula NGC6357 in SHO narrowband, 



    
        

            robonrome
Lobster Nebula NGC6357 in SHO narrowband
Powered byPixInsight

Lobster Nebula NGC6357 in SHO narrowband

Technical card

Imaging telescopes or lenses: APM LZOS 130/780

Imaging cameras: ZWO ASI294MM Pro

Mounts: iOptron CEM70

Guiding telescopes or lenses: APM LZOS 130/780

Guiding cameras: ASI290MM Mini ASI 290 Mini

Focal reducers: Riccardi RIRED-M63

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

Filters: Antlia SII 3.5nm  ·  Antlia 3.5nm Ha  ·  Antlia 3.5nm OIII

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


Dates:July 18, 2021July 19, 2021

Frames:
266x300" (22h 10') bin 2x2
76x600" (12h 40') bin 2x2

Integration: 34h 50'

Avg. Moon age: 9.08 days

Avg. Moon phase: 67.56%


Basic astrometry details

Astrometry.net job: 4778457

RA center: 17h25m45s.6

DEC center: -34°0719

Pixel scale: 1.617 arcsec/pixel

Orientation: 180.752 degrees

Field radius: 0.852 degrees


Resolution: 2885x2459

Locations: Backyard, Brisbane, Queensland, Australia

Data source: Backyard

Description

I've imaged this earlier in the season and re-used that data but added double the integration time and also added a fair chunk of 10min exposures to seek fainter detail.

This is by far the longest integration I've done now at 34 hours... conclusion, I need to stop being lazy and seeking to imporve images with more integration time and learn how to process better. While APP's weighting by quality in stacking is great, I've started using it a bit like a crutch and not being as discriminating with subs as I probably should be. Something I will work on. 

The individual channels stacked in APP I then combined and processed in Startools as SHO and finished in PS CC. With the rotation of subs this ended up more a square format where all my frames lined up.

Comments

Revisions

  • Lobster Nebula NGC6357 in SHO narrowband, 



    
        

            robonrome
    Original
  • Final
    Lobster Nebula NGC6357 in SHO narrowband, 



    
        

            robonrome
    B

B

Description: reworked slightly and boosted contrast

Uploaded: ...

Sky plot

Sky plot

Histogram

Lobster Nebula NGC6357 in SHO narrowband, 



    
        

            robonrome

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Southern Hemisphere Astro