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Sh2-101 / Cygnus X-1 / Tulip Nebula, Sean O'Hara
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Sh2-101 / Cygnus X-1 / Tulip Nebula

Getting plate-solving status, please wait...
Sh2-101 / Cygnus X-1 / Tulip Nebula, Sean O'Hara
Powered byPixInsight

Sh2-101 / Cygnus X-1 / Tulip Nebula

Equipment

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Acquisition details

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Description

This looks way too red - just trying to let a first iteration settle. Having a fairly difficult time getting the color right on this one. I had much better luck with this particular dual narrowband last year, but this time around the bluer O-III is just not coming out. Realizing I might have done a different HOO color combination on previous targets, and will have to try this again here. This was a straight process of the 78-frame integration, using GHS to stretch and mostly masked curves.

The clear skies here in Seattle don't come often, and are really short right now so I really want to get this system calibrated before longer nights come. I tossed an equal number of subs from previous nights as the transparency those evenings was even less ideal, and my main objective was to improve my backspacing and tilt errors I was finding. I think there is still a little of both, but based on HFR and star counts, I think the optics are much more in tune that this time last year. (also replaced the HEX focuser with a 3"FT and i think this has solved some of the random errors and created a much more stable base)

Hoping the data is there, just have to coax it out.

Comments

Revisions

  • Sh2-101 / Cygnus X-1 / Tulip Nebula, Sean O'Hara
    Original
  • Sh2-101 / Cygnus X-1 / Tulip Nebula, Sean O'Hara
    B
  • Final
    Sh2-101 / Cygnus X-1 / Tulip Nebula, Sean O'Hara
    C

Sky plot

Sky plot

Histogram

Sh2-101 / Cygnus X-1 / Tulip Nebula, Sean O'Hara