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What is this?

Off-topic
2 replies•173 views
Craig Towell avatar
Craig Towell avatar
In today’s IOTD. A watermark? Or something else? 
Salvatore Iovene avatar
Salvatore Iovene avatar
It's an actual nebula. Search Merope on AstroBin and you'll see it in a lot images.

https://en.wikipedia.org/wiki/IC_349
Arun H avatar
Arun H avatar
It is tough to capture in the detail presented in this image, a major reason it made IOTD.