The map below shows what was heard on FT8 on 28 MHz with the three best DX signals being YF3FBV in Indonesia (12,779kms), HS0ZIV in Thailand (9,868kms) and AP2MKB in Pakistan.
There were also a lot of double hop signals from Russia and Ukraine as well as some triple hop ones from Kazakhstan.
The band opened at about 07:00 UTC and stayed more or less open until 20:00 UTC. It finally fizzled out as late as 22:50 UTC with OG0C in the Aland Islands in the Baltic being one of the last signals heard.
Notes...
1) Skip Zones... The yellow line shows my one hop Sporadic-E limit. The skip zones are pretty clear to see if you ignore the one off stations. Going east from my location, the skip zone extended as far as central Germany. Then there is a mass of stations as far as the east of Poland where my one hop limit kicks in.
Just beyond the one hop limit is the area that is hard to get into, especially on bands likes 50 MHz. Ironically, the further east you go, it gets easier as the double hop contacts appear.
2) Wide open... It was one of those days which you might say that the band was 'wide open'. There were signals coming in from several directions at once and several were quite strong.
3) Beacons... These were the beacons heard from all over Europe...
EI7GL 28169.3 ZB2TEN/B 18:14 23 May IO51TU ES IM76HD Gibraltar
EI7GL 28241.6 F5ZUU/B 13:35 23 May IO51TU ES JN24IL France
EI7GL 28218.0 IQ5MS/B 12:32 23 May IO51TU ES JN54AB Italy
EI7GL 28200.0 OH2B/B 12:05 23 May IO51TU ES KP20DH Finland
EI7GL 28188.0 OE3XAC/B 11:29 23 May IO51TU ES JN78SB Austria
EI7GL 28205.0 DL0IGI/B 10:55 23 May IO51TU ES JN57MT Fed. Rep. of Germany
EI7GL 28237.5 LA5TEN/B 10:53 23 May IO51TU ES JO59JP Norway
EI7GL 28271.0 OZ7IGY/B 10:52 23 May IO51TU ES JO55WM Denmark
EI7GL 28292.2 SK0CT/B 10:51 23 May IO51TU ES JO89XK Sweden
EI7GL 28255.8 C30P/B 10:19 23 May IO51TU ES JN02SM Andorra
EI7GL 28227.2 IW3FZQ/B 09:50 23 May IO51TU ES JN55VF Italy
EI7GL 28279.0 DB0UM/B 09:49 23 May IO51TU ES JO73CE Fed. Rep. of Germany
EI7GL 28215.7 SR5TDM/B 08:32 23 May IO51TU ES KO01KX Poland
EI7GL 28253.2 ED5YAU/B 08:28 23 May IO51TU ES IM98WN Spain
EI7GL 28298.1 SK7GH/B 08:24 23 May IO51TU ES JO77BF Sweden
In total, a whopping 1022 reports from 769 stations in 53 countries were uploaded to PSK Reporter which is a sure sign of a good day.
These are the stations heard on FT8 on 28 MHz...