Hemisphere:  Southern  ·  Constellation: Scorpius (Sco)  ·  Contains:  NGC 6334
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Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image, 



    
        

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Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image
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Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image

Getting plate-solving status, please wait...
Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image, 



    
        

            robonrome
Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image
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Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image

Technical card

Imaging telescopes or lenses: APM LZOS 130/780

Imaging cameras: ZWO ASI2600mm

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


Dates:July 25, 2021

Frames: 144x300" (12h)

Integration: 12h

Avg. Moon age: 16.28 days

Avg. Moon phase: 97.41%


Basic astrometry details

Astrometry.net job: 4868546

RA center: 17h19m01s

DEC center: -35°5110

Pixel scale: 2.630 arcsec/pixel

Orientation: 1.720 degrees

Field radius: 1.272 degrees


Resolution: 2871x1972

Locations: Backyard, Brisbane, Queensland, Australia

Data source: Backyard

Description

Having been convinced Mono is for me with my ASI294mm, I decided to go all in and sell my colour QHY268c and get the mono APS-C equivalent ASI2600mm.

The new camera is true to it's word in having zero amp glow and the narrowband flats look normal unlike the wiggly shading that dominates HA and SII flats on the ASI294mm... that said I've never had any trouble calibrating out either.

The extra FOV real estate is nice, but I have a bit of work to do to get up to speed. Not sure my seeing for this image is up to the smaller pixel size of the 2600mm compared to the 294mm. Some moon glow degradation in play as well I think.

It's nice to have more resolution even if it's only to spend to gain signal to noise in Startools Bin function (as I have here 0.7x).

Stacked and combined in APP mapping Ha, OIII, and SII in SHO and adding both OIII and SII as 80% green.

Then separately processed and combined the Ha OIII and SII layers in startools also in SHO. Finalised in PS CC.

Comments

Revisions

  • Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image, 



    
        

            robonrome
    Original
  • Final
    Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image, 



    
        

            robonrome
    D

D

Description: restacked in APP and reprocessed in Startools with 50% binning and SHO palette

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Cat's Paw NGC6334 in SHO - new camera ASI2600mm first image, 



    
        

            robonrome