Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  34 Cyg)  ·  37 Cyg)  ·  40 Cyg  ·  42 Cyg  ·  44 Cyg  ·  50 Cyg)  ·  50 alf Cyg  ·  55 Cyg  ·  56 Cyg  ·  57 Cyg  ·  58 Cyg  ·  58 nu. Cyg  ·  59 Cyg  ·  60 Cyg  ·  62 Cyg  ·  62 ksi Cyg  ·  Arided  ·  Aridif  ·  Arrioph (α Cyg  ·  B345  ·  B346  ·  B347  ·  B348  ·  B349  ·  B350  ·  B351  ·  B352  ·  B353  ·  B355  ·  B356  ·  And 730 more.
Getting plate-solving status, please wait...
Cygnus in HOO, Jeff Ball
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Getting plate-solving status, please wait...
Cygnus in HOO, Jeff Ball
Powered byPixInsight

Equipment

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Description

A little experiment with the 85mm Sigma Art lens and narrow band imaging.  Always need more O3.  Hoping to add SII in the next few weeks.

This image really breaks down in 16bit to 8 bit conversion and jpg compression.  It really is evident on my iMac monitor.  I don't see it on other devices.  And I don't seem the artifacts when in Photoshop.  Must be a monitor/browser combination that cannot handle some of the low luminance transition areas.

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Cygnus in HOO, Jeff Ball

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