John W
05-03-2023, 12:01 PM
5th March.
Presented here are 3 consecutive days of solar images showing the sunspot locations and changes. The ARs are numbered. Each is a single exposure taken with a Canon 550d camera attached to a 81 mm refractor with herschel wedge at 540 nm. The official sunspot count for January was 143.6 (the highest for solar cycle 25), while the count for February was 110.9. The graph shows the variations in sunspot numbers for cycle 25 so far. The purple crosses show the predicted progress, the yellow the actual count and the green line the smoothed/average count (Graph source: BOM Space Weather Services).
Presented here are 3 consecutive days of solar images showing the sunspot locations and changes. The ARs are numbered. Each is a single exposure taken with a Canon 550d camera attached to a 81 mm refractor with herschel wedge at 540 nm. The official sunspot count for January was 143.6 (the highest for solar cycle 25), while the count for February was 110.9. The graph shows the variations in sunspot numbers for cycle 25 so far. The purple crosses show the predicted progress, the yellow the actual count and the green line the smoothed/average count (Graph source: BOM Space Weather Services).