Purple? / Satellite trail erasure software
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by
saradrml
Weird that it's purple. Any specific reason it was tinted differently?
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by
Budgieye
moderator
It is missing the green. My guess is that the galaxy was "cut out" by software, cleaned up, and pasted back, but the software forgot to put the green back in. These images are heavily edited.
I'll ask at the DECaLS forum https://groups.google.com/forum/#!forum/decam-legacy-survey
Posted
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by
Budgieye
moderator
I got a reply from DECaLS forum. The software thought that the edge-on galaxy was a satellite trail, and tried to erase it. Satellite trails are always one colour, so the software only erased one colour. :}
https://groups.google.com/forum/#!topic/decam-legacy-survey/smnZOxcTFto
Posted
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by
saradrml
in response to Budgieye's comment.
I'm pretty late to reply, but still: Thank you for the information! Always fun to learn 😃
Posted