Beautiful catch my friend! Are the SAS CRJ900's operated by CityJet? They used to operate fully with the RJ-85 but they were retired 4 years ago, and apparently only fly these aircraft on behalf of SAS.
Thank you! You are correct, they are operated by CityJet - this one arrived two weeks earlier in a white livery and got painted into this. There is also a CityJet RJ85 (EI-RJN) stored in the aviation museum at Norwich Airport, you get to go inside too! 👍