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Contains:  IC 4715, M 18, NGC 6613, NGC 6603, IC 1284, NGC 6595, NGC 6590, NGC 6589, NGC 6568, The star 16Sgr, The star 15Sgr, The star μSgr
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Cosmic Fish in a Sea of Stars, 


            Andys Astro
Cosmic Fish in a Sea of Stars

Cosmic Fish in a Sea of Stars

Technical card

Resolution: 3011x4744

Dates:June 6, 2018June 7, 2018June 8, 2018

Astrodon Tru-Balance E-Series Blue 36mm Blue Filter: 90x120"
Astrodon Tru-Balance E-Series Green 50mm Green Filter: 90x120"
Astrodon Ha 1.25 3nm: 20x1800"
Astrodon Red Tru-Balance E-Series Gen 2 Red filter: 90x120"

Integration: 19.0 hours

Avg. Moon age: 22.85 days

Avg. Moon phase: 42.69%

Bortle Dark-Sky Scale: 6.00 job: 2104550

RA center: 274.229 degrees

DEC center: -19.368 degrees

Pixel scale: 3.288 arcsec/pixel

Orientation: 190.571 degrees

Field radius: 2.566 degrees

Locations: Burwood, Melbourne, Victoria, Australia

Data source: Backyard


The Sagittarius star cloud and friends in HaRGB - 2 panel mosaic taken from my light polluted backyard in suburban Melbourne, Australia.
Kinda looks like an angel fish's face in profile.
Lots of interesting swirls of dark gas and dust, and sooooooo many stars!
Hat's off to all who attempt RGB under LP - it's hard to process out those gradients!
My deepest stars to date though, 45 x 120 secs each RG&B = 90 mins ea.
Attempting to overcome signal to LP ratio - worked ok - might have to geo even deeper in Blue though, as those subtle reflection nebulas are difficult to render under LP conditions.



Andys Astro
License: None (All rights reserved)


  • Cosmic Fish in a Sea of Stars, 


            Andys Astro
  • Final
    Cosmic Fish in a Sea of Stars, 


            Andys Astro

Sky plot

Sky plot


Cosmic Fish in a Sea of Stars, 


            Andys Astro