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Imaging telescope or lens:William Optics ZENITHSTAR 73 APO
Imaging camera:ZWO ASI 1600 MM Pro
Guiding telescope or lens:ZWO Off Axis Guider
Guiding camera:ZWO ASI 120 MM
Focal reducer:William Optics Flat 73
Astrodon B Gen.2 E-series 36mm: 165x30" (gain: 139.00) -15C bin 1x1
Astrodon G Gen.2 E-series 36mm: 110x30" (gain: 139.00) -15C bin 1x1
Astrodon L Gen.2 E-series 36mm: 1050x15" (gain: 139.00) -15C bin 1x1
Astrodon R Gen.2 E-series 36mm: 92x60" (gain: 139.00) -15C bin 1x1
Integration: 8.2 hours
Flat darks: ~25
Avg. Moon age: 21.78 days
Avg. Moon phase: 53.53%
Bortle Dark-Sky Scale: 7.00
Astrometry.net job: 2660430
RA center: 12h 27' 47"
DEC center: +13° 0' 43"
Pixel scale: 1.772 arcsec/pixel
Orientation: 1.045 degrees
Field radius: 1.385 degrees
Locations: Home, London, United Kingdom
Data source: Backyard
Markarian's Chain shot from my back garden over three nights in late March. Probably the deepest image I've taken in terms of integration time...which leaves me feeling my processing is not quite doing the data justice.
In any case, this is an incredible part of space; looking away from our galaxy reveals countless others!
The crazy number of Lum subs took a whole day for APP to chug through and so I've resolved to lower the gain from unity going forwards to get more manageable sub lengths than 15 seconds!
Captured using APT, stacked in APP and processed in Pixinsight.
Thanks for looking!
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