2021-04-20T12:59:10.917NOAA AR/sunspot2021-04-20 00:30:00 2816 Beta 2817 Beta NOAA Halpha plage2021-04-20 00:30:00 2814 2815 NOAA expected region2021-04-20 00:30:00 2813 Catania sunspot groups2021-04-20 07:30:00 86 87 88 89