File:Cygnus 70 panel Gigapixel APP Mosaic - Flickr - kees scherer.jpg
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DescriptionCygnus 70 panel Gigapixel APP Mosaic - Flickr - kees scherer.jpg |
Flickr Explore & Astrobin Image of the day 27 aug 2017: www.astrobin.com/307683/D/?nc=iotd Image of the week feb 5, 2018 on PhotographingSpace: photographingspace.com/iotw-feb-5-2018/ Building further on the 48 (50) panel mosaic i added a row of 16 panels to include the Veil nebula Complex.The registration RMS error is only 0.1 pixel....... As a basis for this Mosaic I used 70 separate stacks (also made with APP) with integration times between 45 and 345 minutes each depending on the object in the frame. An all new mosaic registration algorithm was used that is capable of truly sub pixel perfect registration of these large Mosaics. And the whole process is fully Automatic. The full size version is 29320x35386 pixels giving 1038 Megapixels). That is not practicle for web use, but this upload is a 50% reduction and still a 120 Megabyte JPG. You can download the 50% version by selecting the downloadlink here on Flickr. Processing: only histogam stretch and curves adjustments, nothing else. The Fits file size of the full version is 3.7 Gb. Data collected between may 8 and july 31, 2017. Esprit 100 Triplet APO f5.5 telescope and QHY16200 CCD Camera cooled to -20 C with Baader 6nm H-alpha filter. Mosaic settings APP with version 1.0521 (Experimental version to test new Algorithm): 3) Analyse stars min size: 4 Clip Prof: 0.1 Filter profile: off Kappa: 3 (set to detect 3000-5000 stars) 4) Register Pattern recognition: pentagons scale start: 5 scale stop: 10 use dynamic distortion corr: on same camera and optics: off Distortion margin: 0.02
registration mode: mosaic registration model: projective 6) Integrate composition mode: full LNC degree: 4) LNC it: 3 enable MBB: on MBB%: 5 No under/overshoot on Integrate set scale 1.0 The Astro Pixel Processor website: www.astropixelprocessor.com/ More versions and information on : www.astrobin.com/307683/C/ Knight Observatory, Tomar. (Explore) |
Date | Taken on 18 August 2017, 10:24 |
Source | Cygnus 70 panel Gigapixel APP Mosaic |
Author | Kees Scherer from Tomar, Portugal |
Flickr tags InfoField | gigapixel , cygnus , mosaic , astropixelprocessor , iotd , qhy16200 , h-alpha |
Camera location | 39° 36′ 03.33″ N, 8° 22′ 48.59″ W | View this and other nearby images on: OpenStreetMap | 39.600926; -8.380165 |
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Licensing edit
This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication. | |
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission.
http://creativecommons.org/publicdomain/zero/1.0/deed.enCC0Creative Commons Zero, Public Domain Dedicationfalsefalse |
This image was originally posted to Flickr by kees scherer at https://flickr.com/photos/50769593@N00/36598821376. It was reviewed on 10 August 2020 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-zero. |
10 August 2020
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current | 07:22, 10 August 2020 | 14,260 × 17,293 (134.85 MB) | Red panda bot (talk | contribs) | In Flickr Explore: 2017-08-18 |
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