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Contains:  M 4, NGC 6121, The star Al Niyat (σSco)
Getting plate-solving status, please wait...

Sharpless 2-9 and Messier 4

Technical card

Resolution: 6518x4908

Dates:Aug. 27, 2017

Astrodon Gen2E Blue: 17x600" bin 1x1
Astrodon Gen2E Green: 17x600" bin 1x1
Astrodon Gen2E Luminance: 13x900" bin 1x1
Astrodon Gen2E Red: 12x600" bin 1x1
Astrodon Tru-Balance 1.25" 5nm Ha: 9x1800" bin 1x1

Integration: 15.4 hours

Avg. Moon age: 5.72 days

Avg. Moon phase: 32.66% job: 1719468

RA center: 16h 21' 55"

DEC center: -25° 57' 50"

Pixel scale: 1.047 arcsec/pixel

Orientation: 90.166 degrees

Field radius: 1.186

Locations: Deep Sky West Remote Observatory (DSW), Rowe, New Mexico, United States




Jim Matzger


Sky plot

Sky plot


Sharpless 2-9 and Messier 4, 


            Jim Matzger