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Contains:  The star 31Cep
Getting plate-solving status, please wait...
LDN1250 and 1235 (full frame & crop), 





    
        

            Barry Wilson
LDN1250 and 1235 (full frame & crop)

LDN1250 and 1235 (full frame & crop)

Technical card

Resolution: 2438x1847

Dates:Sept. 4, 2016

Frames:
Astrodon E-Series Blue filter: 24x300" bin 1x1
Astrodon E-Series Green filter: 24x300" bin 1x1
Astrodon E-Series Red filter: 24x300" bin 1x1
Astrodon Luminance E-Series: 29x300" bin 1x1
Astrodon Luminance E-Series: 12x600" bin 1x1

Integration: 10.4 hours

Avg. Moon age: 2.92 days

Avg. Moon phase: 9.32%

Astrometry.net job: 1227124

RA center: 336.225 degrees

DEC center: 75.144 degrees

Pixel scale: 3.367 arcsec/pixel

Orientation: 177.922 degrees

Field radius: 1.431 degrees

Locations: Home observatory, Totnes, Devon, United Kingdom

Description

I have let this image (and its crop) sit on my hard drive for the last week, unsure whether to post up or not. The reason I have dithered (pun intended) is that I think during my final session of gathering luminance I suffered thin high cloud resulting in the loss of definition within the faint brown dust of the two LDN. I am not 100% sure though as perhaps at my image scale I shouldn't expect to see too much detail and definition.

Processing has been difficult I have to admit, teasing the dust, combating the image becoming overwhelmed by stars, gradients (at the rear of my garden there is a rail line and one clear night the maintenance crew was out and about shining torches etc), having sufficient colour to enrich that lovely brown dustiness for which the constellation of Cepheus is famed. In the end I'm not convinced balancing all of these demands that I've really let the image shine, aiming as I am for what I realise is my growing preference and style for a 'natural' tone and feel. My FOV is a little too wide as well, not close enough for good resolution of LDN1250, yet not wide enough to include LDN1235 . . . the predatory shark giving chase! Oh well, the muddled composition has also given me reason to pause and not sure I am ready for another mosaic having completed a number this summer and wanting to finish my 4-pane Ha mono Heart and Soul of last year. Nevertheless there is merit in the image, so here it is. I have presented the frame orientated portrait format to better show the chasing fishes!

Rev B: crop uploaded

Comments

Author

Barry-Wilson
Barry Wilson
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Revisions

  • LDN1250 and 1235 (full frame & crop), 





    
        

            Barry Wilson
    Original
  • Final
    LDN1250 and 1235 (full frame & crop), 





    
        

            Barry Wilson
    B

Sky plot

Sky plot

Histogram

LDN1250 and 1235 (full frame & crop), 





    
        

            Barry Wilson

In these public groups

UK Astro-Imaging