Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  IC 1311  ·  IC 1318  ·  IC 5068  ·  IC 5070  ·  NGC 6997  ·  NGC 7000  ·  NGC 7039  ·  North America nebula  ·  Part of the constellation Cygnus (Cyg)  ·  Pelican nebula  ·  The star 31Cyg  ·  The star 32Cyg  ·  The star 57Cyg  ·  The star 59Cyg  ·  The star Deneb (αCyg)  ·  The star Sadr (γCyg)  ·  The star νCyg  ·  The star ξCyg  ·  The star σCyg  ·  The star τCyg  ·  gamma Cyg nebula
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Northern Cygnus, Ray Butler
Northern Cygnus
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Northern Cygnus

Getting plate-solving status, please wait...
Northern Cygnus, Ray Butler
Northern Cygnus
Powered byPixInsight

Northern Cygnus

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Description

Northern Cygnus, last night, from Galway city.

Nearly 2 hours of exposure (56 x 2 minutes on an AstroTrac), Mamiya 80mm lens at f/4, IDAS LPS-P2 filter to suppress light pollution.

No bias, dark or flatfield frames.

About half the frames were shot in astronomical twilight, the rest in full darkness.

I am seriously impressed with this little Fuji X-A3. The H-alpha response is so good - similar to Canon and Nikon's special "astro" models (60Da, D810A) - that it doesn't really need modifying. After years of using an almost H-alpha blind Canon 5DII, and a Fuji S5 Pro that had similarly good H-alpha but only half the quantum efficiency and a multiple of the readout and dark noise, this camera hits the sweet spot.

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Northern Cygnus, Ray Butler