Milky Formulation, 12 years, 1250 hours of exposures and 125 x 22 degrees of sky
It took nearly twelve years to derive sufficient recordsdata for this excessive decision gigapixel class mosaic image of the Milky Formulation. Total exposure time extinct is around 1250 hours between 2009 and 2021.
The closing photograph is ready 100 000 pixels huge, it has 234 particular person mosaic panels stitched together and 1,7 gigapixels. (Click on for a elegant image) The total frames extinct are marked in this image. Since many of sub-pictures and mosaics are self sufficient artworks it leads to a truly advanced mosaic construction.
“ I will hear song in this composition, from excessive sparcs and bubbles at left to a deep and big sounds at merely.“
From Taurus to Cygnus
Click on for a elegant image, or not it is truly price it! (7000 x 1300 pixels)
Image in mapped colors from the gentle emitted by an ionized substances, hydrogen=green, sulfur=crimson and oxygen=blue. NOTE, the disagreeable size of the Moon in a decrease left nook. NOTE 2, there are two 1:1 scale enlargements from the fat size fashioned at every ends of the image
Taurus aspect of the mosaic, https://astroanarchy.blogspot.com/2021/02/a-new-mosaic-image-from-taurus-to.html
A closeup from elegant panorama to explain the total decision
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The California Nebula, NGC 1499, might per chance well also be seen at bottom left of the elegant mosaic image.
There are about 20 million particular person stars seen on your entire mosaic image.
Orientation and details
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Imaging recordsdataImage spans 125 x 22 degrees of the Milky About 20 million particular person stars are seen in my photograph!
It took nearly twelve years to finalize this mosaic image. The reason for a truly lengthy duration of time is naturally the dimensions of the mosaic and the true fact, that image is intensely deep. Another reason is that I’ve soht many of the mosaic frames as a person compositions and put up them as self sufficient artworks. That leads to plenty of advanced image role witch is partly overlapping with a plenty of unimaged areas between and around frames. I’ve shot the lacking recordsdata now after which for the length of the years and last year I was as soon as ready to put up many sub mosaic pictures as I obtained them ready first.
My processing workflow is intensely fixed so very minute tweaking was as soon as wanted between the mosaic frames. Total exposure time is over 1250 hours. Some of the frames has more exposure time, than others. There are some extremely gloomy objects clearly seen in this composition, be pleased a extremely gloomy supernova remnant W63, the Cygnus Shell. It lays about six degrees up from North The US nebula and it might per chance per chance well also be seen as a faded blue ring. I spent about 100 hours for this SNR by myself. An various elegant and faint supernova remnant in Cygnus might per chance well also be seen at attain merely edge of the image. G65.5+5.7 is as elegant as more famend Veil nebula. There are over 60 exposure hours for this SNR by myself. (Veil SNR is exact outside of the mosaic home for compositional causes nonetheless might per chance well also be seen in “Detail” image above.)
The Mosaic Work, technical recordsdata
I’ve extinct several optical configurations for this mosaic image for the length of the years. Up to 2014 I was as soon as using an faded Meade LX200 GPS 12″ scope, QHY9 astrocam, Canon EF 200mm f1.8 digicam optics and baader narrowband filter role. After 2014 I’ve had 10-micron 1000 equatorial mount, Apogee Alta U16 astro digicam, Tokina AT-x 200mm f2.8 digicam lens and the Astrodon 50mm sq. narrowband filter role. I’ve shot many details with a longer focal length, outdated to 2014 by using Meade 12″ scope with reducer and after 2014 Celestron EDGE 11″ and reducer. Quider digicam has been Lodestar and Lodestar II.
I took my most modern toolset as a spoiled tool since it has a somewhat excessive decision blended to a truly elegant discipline of thought. Also it collects photons very rapid since or not it is undersampled and I will have very gloomy background nebulosity seen in very short time (over and over 30 min physique is sufficient)
I invent all my mosaic work below the PhotoShop, Matching the separate panels by using stars as a hallmark is variety of straight forward work. My processing has change into so fixed, that very minute tweaking is wanted between separate frames, exact some minor stages, curves and coloration balance.
I’ve extinct plenty of longer focal length sub-frames in my mosaic to lift details. (Stare the mosaic plan at top of the net page) To match them with shorter focal length photos I developed a new formulation.
At the starting up I upscale the short focal length frames about 25% to have extra space for excessive decision pictures.Then I match the excessive res photograph to a mosaic by using the celebs as a hallmark. After that I take away the total puny stars from the excessive res image. Subsequent I separate stars from low res photograph and merge the starless excessive res recordsdata to a starless low res physique. And finally I role the removed low res stars aid at top of all the pieces with zero recordsdata lost. Repeatedly there are some optical distortions and or not it is seen particularly in a main person discipline. Now all my stars are coming from the same optical setup and I develop not have any complications with distortions. (I’m using the same primary person elimination formulation as in my Tone Mapping Workflow)
Closeups from elegant panorama to explain the total decision
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Image in mapped colors from the gentle emitted by an ionized substances, hydrogen=green, sulfur=crimson and oxygen=blue.
A 1:3 decision pack up from the photograph above
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A closeup from the main image shows the Sharpless 124 at up and the Cocoon nebula with a uncomfortable gas plod at bottom.
Sharpless 205, NGC 1491 and Lynds Captivating Nebula 696
From Bubble to Cave Nebula