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Technical card

Imaging telescope or lens: TS Optics TS PHOTOLINE Triplet FPL-53 APO 102/715

Imaging camera: ZWO Optical ASI071MC-cool

Mount: GPD2

Guiding telescope or lens: 50mm Guidescope

Guiding camera: ASI ZWO ASI120MC

Software: MSB Software Astroart 5StarToolsAdobe PhotoShop CS 3

Resolution: 1200x1600

Dates: July 27, 2017

Frames: 24x600" (gain: 90.00) bin 1x1

Integration: 4.0 hours

Darks: ~24

Flats: ~24

Bias: ~62

Avg. Moon age: 4.40 days

Avg. Moon phase: 20.32%

Astrometry.net job: 1727731

RA center: 344.107 degrees

DEC center: 62.566 degrees

Pixel scale: 3.418 arcsec/pixel

Orientation: 50.097 degrees

Field radius: 0.950 degrees

Locations: Southern Observatory, Triora, Italy

Description

Imagine you have problems with your camera, because cooling below zero results in ice on the chip. You are totally frustrated when you start imaging and the next morning you find four hours of frames on your hard disk with the wrong field of view and a large dust particle in the interesing parts of the image...

This happend to this image, processing was aweful. On the single frames it is barely nothing visible, so it took me a long time to finish this image. It is quite pretty for all the problems :-D

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Author

Felix
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Sharpless 155 - Cave Nebula, Felix