NGC6992 - Veil Nebula
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A crypto project which sets stakes of its users to zero has nothing to do with the basic ideas of blockchains and cryptocurrencies.
It's a shame to run down such a project and let it go to waste in that way.
As funds on STEEM aren't safe anymore, I moved all over to HIVE.
You even got a every nice satellite in the process! That is a very nice image! How do you get the colours? Do you use special filters?
I also have a (super naive) question. The image seems to exhibit a yellowish foreground. Does it come from your apparatus? I guess it is possible to get rid of it at edition time, isn't it?
Thank you very much @lemouth :-)
You have very good eyes :-) I'm living here under a satellite and plane racetrack. Fortunately, the satellite tracks mostly get out of the image after stacking.
I'm using a color camera, it has a regular DSLR CMOS sensor, for the QHY247C it should be the sensor that is also in a Nikon D5300. For this image, I used a duo narrowband filter, which lets through the emission lines of H-alpha (red) and OIII (blue). Green is a little bit of a mix of those colors. I thought about buying a mono camera before (where you get the color with various filters and would have a better resolution due to the lack of the Bayer matrix), but I thought frustration could be high when I would only be able to get 1 or 2 colors and then the weather turns bad for weeks.
That's no naive question :-)
There are several reasons for this. The first one is, that it was a little bit of misty/hazy so the light of the streetlamps gives the water particles in the air a nice "glow", which gets this color through the H-alpha & OIII filter. Also without wet air, I get some weird foreground/background colors and gradients due to the surrounding light sources. The second one is, that the Bayer matrix on the sensor has 2 times more green pixels than red and blue ones. So the pictures shot with a color camera will have a greenish tint.
It's no problem to remove it in editing. It's just a color calibration thing like the white balance on normal daylight photography. Gradients caused by light pollution can also be removed in editing, even if it is a little bit harder to get rid of them.
Ooh then we have several factors behind the yellow. I actually didn't even consider thinking about light pollution! Thanks for answering! :)
You're welcome :-)
Even with filters, there is a small amount of light that can reach the sensor, especially with color cameras and filters that have two bands.
Jetzt weis ich endlich warum mir der Account ngc so bekannt vorkam.
Ich muss schon sagen, Deine Actifit-Posts sind zusammen mit den schönen Fotos eine wahre Freude.
Vielen Dank für deine netten Worte @condeas :-)
Es freut mich wenn sie dir gefallen. Auch wenn dieses Foto hier nur eine unbearbeitete Einzelaufnahme ist. Ich musste etwas zum einfügen haben :-D
Das mit dem Account ngc verstehe ich aber nicht. Das ist nicht meiner falls du das denkst. Ngc steht hier für New General Catalog und der Cirrusnebel/Veil Nebula hat dort die Nummer 6992.
Macht nichts, hierbei handelt es sich um einen recht prominenten Steem-Wal (Nextgencrypto).
Danke für die Info :-)
Der ist mir bis jetzt noch nicht über den Weg geschwommen :-D
wow ....
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Thank you very much @ridoykhan22 :-)
Wow! What a photograph. Great picture.
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Thank you very much @anarchy999
A brilliant photo, I almost missed. Hardfork got in the way, I think. Thanks for lending us your talent, and your vision.
Thank you very much for your kind words @agmoore2 :-)
No problem, the hardfork was very present in the last days.
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