Sunspotter Program Photos
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Part A: Twenty-six photos of the solar disc taken during two consecutive Carrington rotations.
1. January 20, 2024, 1:53 PM
Region classifications: 3545 (HAX), 3549 (CSO), 3554 (HAX), 3555 (CSO), 3556 (HAX), 3559 (EAI), 3561 (DAO). To calculate the Wolf number, multiply the number of sunspot groups by 10, and then add the number of visible sunspots on the solar sphere. Wolf number = 108 (7 groups, 38 spots). This photo picks up a bit of granulation on the solar surface. Area 3545 may show Wilson effect. Also note facula near areas 3545 and 3559.
2. January 21, 2024, 1:52 PM
Region classifications: 3549 (HSX), 3555 (CSO), 3556 (HAX), 3559 (FKC), 3561 (DRI). Wolf number = 87 (5 groups, 37 spots).
3. January 31, 2024, 3:17 PM
Region classifications: 3565 (DSO), 3367 (DAI), 3571 (HSX). Wolf number = 49 (3 groups, 19 spots). Area 3571 may show Wilson effect. Note facula near limb at 5 o’clock.
4. February 1, 2024, 11:50 AM
Region classifications: 3565 (CRO), 3567 (DAI), 3571 (HSX). Wolf number = 47 (3 groups, 17 spots). Some granulation visible in photo. Area 3571 may show Wilson effect — it appears “deep.”
5. February 3, 2024, 12:41 PM
Region classifications: 3571 (HSX), 3574 (DSO), 3575 (DKC). Wolf number = 51 (3 groups, 21 spots).
6. February 4, 2024, 12:14 PM
Region classifications: Wolf number = XXX (3571 (CSO), 3574 (CSO), 3575 (DKC). Wolf number = 42 (3 groups, 12 spots).
7. February 5, 2024, 3:01 PM
Region classifications: 3571 (HSX), 3575 (DKC), 3576 (EKC). Wolf number = 47 (3 groups, 17 spots). Note facula near area 3576.
8. February 6, 2024, 3:19 PM
Region classifications: 3571 (HSX), 3572 (BXO), 3574 (CSO), 3575 (DKI), 3576 (FKI), 3578 (CRO). Wolf number = 76 (6 groups, 16 spots). Facula near areas 3576 and 3578.
9. February 8, 2024, 1:26 PM
Region classifications: 3571 (HAX), 3576 (FKC), 3578 (CSO), 3579 (CRO). Wolf number = 53 (4 groups, 13 spots).
10. February 10, 2024, 12:24 PM
Region classifications: 3571 (HSX), 3576 (FKC), 3579 (HSX), 3581 (HSX). Wolf number = 66 (4 groups, 26 spots).
11. February 12, 2024, 12:30 PM
Region classifications: 3576 (FKC), 3581 (HSX), 3582 (DAI), 3583 (DKI). Wolf number = 51 (4 groups, 11 spots).
12. February 13, 2024, 12:54 PM
Pardon the clouds! Region classifications: 3576 (EKI), 3581 (HSX), 3582 (DAI), 3583 (EKI). Wolf number = 55 (4 groups, 15 spots).
13. February 14, 2024, 1:23 PM
Region classifications: 3576 (FKC), 3581 (HSX), 3582 (EAI), 3583 (EHO). Wolf number = 55 (4 groups, 15 spots).
14. February 15, 2024, 12:16 PM
Region classifications: 3576 (FKC), 3581 (HSX), 3583 (ESO), 3586 (HSX). Wolf number = 56 (4 groups, 16 spots). Area 3576 may show Wilson effect.
15. February 16, 2024, 2:00 PM
Region classifications: 3581 (HSX), 3583 (FKO), 3586 (HSX). Wolf number = 34 (3 groups, 4 spots). Activity seems to have waned a bit.
16. February 17, 2024, 1:26 PM
Region classifications: 3581 (HSX), 3583 (FKI), 3586 (HSX). Wolf number = 40 (3 groups, 10 spots).
17. February 18, 2024, 1:07 PM
Region classifications: 3586 (HSX), 3590 (HHX). Wolf number = 23 (2 groups, 3 spots).
18. February 24, 2024, 2:53 PM
Region classifications: 3586 (HSX), 3590 (FKC), 3591 (HSX), 3592 (DSO), 3594 (CAO). Wolf number = 73 (5 groups, 23 spots). Activity picked up in the previous week. Note facula near area 3592.
19. February 28, 2024, 1:02 PM
Region classifications: 3590 (FKO), 3591 (HSX), 3594 (HAX), 3595 (DAO), 3596 (DAO). Wolf number = 64 (5 groups, 14 spots).
20. February 29, 2024, 12:43 PM
Region classifications: 3590 (FKC), 3591 (HSX), 3592 (AXX), 3594 (HRS), 3596 (CAO). Wolf number = 68 (5 groups, 18 spots). Granulation quite evident in photo. Area 3590 appears to show Wilson effect.
21. March 2, 2024, 2:04 PM
Region classifications: 3591 (CSO), 3595 (EKO), 3598 (DAI), 3599 (CRO). Wolf number = 53 (4 groups, 13 spots).
22. March 3, 2024, 1:11 PM
Region classifications: 3591 (HSX), 3595 (ESO), 3598 (DAI), 3599 (CRO), 3600 (HSX). Wolf number = 63 (5 groups, 13 spots).
23. March 5, 2024, 12:31 PM
Region classifications: 3598 (BXO), 3599 (DSI), 3600 (HSX), 3602 (CSO), 3503 (HSX). Wolf number = 61 (5 groups, 11 spots).
24. March 7, 2024, 12:55 PM
Region classifications: 3599 (DAI), 3600 (HSX), 3602 (CSO), 3503 (HAX). Wolf number = 46 (4 groups, 6 spots). Solar activity has tapered off again.
25. March 9, 2024, 12:58 PM
Region classifications: 3599 (DAI), 3600 (HSX). Wolf number = 26 (2 groups, 6 spots).
26. March 10, 2024, 2:04 PM
Region classifications: 3599 (DAI), 3600 (HRS), 3602 (HRX). Wolf number = 37 (3 groups, 7 spots).
Part B: Five photos of individual sunspot groups, annotated.
1. Area 3559, January 20, 2024, 1:53 PM
2. Areas 3576 and 3578, February 6, 2024, 3:19 PM
3. Area 3583, February 17, 2024, 1:26 PM
4. Area 3590, February 24, 2024, 2:53 PM
5. Area 3595, March 2, 2024, 2:04 PM
