4 ms·
What's up with all the purple dots, why are they all the same size?
by Jzush 3y ago
What's up with all the purple dots, why are they all the same size?
- deleted 3y ago[deleted]
- xioxox 3y agohttps://twitter.com/akira_doe/status/1721886699863834770 https://twitter.com/akira_doe/status/1721886699863834770
- SiempreViernes 3y agoAre you referring to what they describe as "ghosts" in the image description? > Another signature of Euclid special optics is the presence of a few, very faint and small round regions of a fuzzy blue colour. These are normal artefacts of complex optical systems, so-called ‘optical ghost’; easily identifiable during data analysis, they do not cause any problem for the science goals.
- Jzush 3y agoAh, yup those are the things I was referring to. They seems a little too uniform so it'd make sense that it'd be an optical artefact.