8-pane Mosaic (Hubble Palette) of the Gamma Cygni Region

[dp297]

This is an 8-pane mosaic with initial dimensions 10675X7384px.
From the beginning I had multiple problems with the lens due to flexure but fortunately they were solved with the help of a good friend (Aggelos Kechagias- http://pegasusastro.com/). (http://pegasusastro.com/%29.)
Unfortunately there was no time to start over..so I am stuck with some problems with my stars.
So....in the nick of time.....still hope u like it.

This photo is from the 9th Annual Amateur Astronomer's Meeting in Fillipaious, Grevena, Greece (2015).
Location: Fillipaioi, Greece (1400m)
Constellation : Cygnus
Imaging scope : Nikon 180ED
Imaging camera : QHY9M (-20°C)
Guiding camera: Lodestar
Mount : Skywatcher EQ6
Guiding : APM optical finder 240mm FL
Focal Reducer : -
Image scale : 6.28 arcsec/pixel
Filters : 2' Baader
Filter Wheel :
Exposures (for each pane) :
Ha 1X1 5x600sec (f4)
OIII bin2X2 5X600sec (f4)
SII bin 2X2 5X300sec (f2.8)
Calibration frames :
Darks 20x, Flats 30x, Bias 100x, Dark Flats 20x
Calibration/Processing : Pixinsight 1.8
Capture : Sequence Generator Pro
Tracking : PhD2 2.5.0

[MGTechDVP]

Wow, that looks amazing.... doesn't look like you had any problems.. at least to me.

[Atmos]

Looking at it on my iPhone, cannot detect any problems :) Fantastic SUPER wide field!

[Octane]

Wonderful.

I hope you print that out really big and hang in your living room. :)

H

[gregbradley]

That looks terrific. What a wonderful widefield narrowband. We don't usually see lens narrowband images. I noticed lenses that move in their adapter can definitely cause star issues as now the image is at a slightly different geometry that does not align well. It needs rotate, align and scaling factors in CCDstack to correct. Or use Registar which adjusts for all of that.

Greg.

[Rex]

Awesome NB wide field Dimitris. Nice details and great colour. I can't detect any major problems you had so you did a good job of covering them up.