Monthly Sunspot Classification and Coordinates
April 2025 Monthly report →
Each group: class – number of spots (B, ΔL). NS: No sunspot.
| Drawing | Day | R | Classification and Coordinates |
|---|---|---|---|
| Drawing | 03 | 153 | CRI – 8 (15, 63.3W), DHC – 7 (20, 37.8W), BXI – 8 (26, 07.3W), CHO – 5 (7, 01.0W), BXI – 11 (-15, 10.8W), CSI – 10 (-29, 05.0W), FKC – 34 (-16, 19.7E) |
| Drawing | 04 | 140 | DRO – 4 (14, 72.6W), DSI – 7 (19, 46.6W), BXO – 4 (26, 15.4W), HH_ – 1 (5, 12.3W), AX_ – 1 (-9, 44.8W), AX_ – 3 (-16, 18.9W), DRI – 6 (-31, 14.7W), AX_ – 2 (-10, 07.1W), FKC – 22 (-17, 10.7E) |
| Drawing | 06 | 194 | AX_ – 3 (20, 73.2W), BXO – 6 (27, 42.2W), HS_ – 1 (6, 39.9W), AX_ – 2 (8, 33.0E), AX_ – 1 (-21, 52.7W), AX_ – 3 (-13, 48.9W), AX_ – 1 (-31, 45.9W), HA_ – 2 (-31, 35.6W), FKC – 42 (-16, 17.4W), DAC – 22 (-13, 06.7E), HR_ – 1 (-6, 83.4E) |
| Drawing | 09 | 121 | ?__ – 13 (17, 16.8W), BXI – 13 (7, 13.9W), AX_ – 1 (28, 07.7E), AX_ – 1 (8, 34.2E), CSI – 14 (-16, 58.0W), DKO – 8 (-12, 34.8W), HS_ – 1 (-7, 38.3E) |
| Drawing | 10 | 151 | CRI – 9 (17, 27.2W), DAI – 22 (7, 25.0W), AX_ – 2 (7, 24.5E), AX_ – 1 (17, 34.3E), AX_ – 2 (11, 50.5E), DHO – 3 (6, 72.2E), CSO – 3 (-15, 75.6W), DSI – 3 (-18, 60.8W), DHO – 4 (-12, 46.4W), HS_ – 2 (-7, 27.8E) |
| Drawing | 11 | 125 | BXI – 7 (17, 41.0W), DKC – 18 (7, 39.6W), AX_ – 4 (15, 20.3E), BXO – 2 (12, 39.1E), DAO – 5 (6, 57.8E), AX_ – 1 (-16, 74.2W), CSO – 6 (-12, 59.4W), HS_ – 2 (-7, 15.1E) |
| Drawing | 13 | 115 | CAI – 7 (17, 68.0W), EKC – 20 (9, 66.6W), CAI – 7 (18, 04.1W), CAI – 17 (6, 32.9E), AX_ – 1 (-18, 23.4W), HS_ – 3 (-7, 11.0W) |
| Drawing | 14 | 81 | EKO – 5 (9, 78.5W), HS_ – 1 (18, 77.4W), BXO – 5 (18, 18.2W), DSC – 18 (8, 19.7E), CSO – 2 (-6, 23.3W) |
| Drawing | 15 | 67 | AX_ – 1 (17, 34.3W), CAI – 22 (7, 05.6E), HS_ – 1 (-7, 38.2W), EAO – 3 (-3, 75.0E) |
| Drawing | 17 | 86 | ESI – 10 (7, 20.7W), DSO – 3 (11, 70.6E), HS_ – 1 (-8, 63.5W), EAI – 9 (-3, 47.7E), BXI – 2 (-5, 59.2E), HS_ – 1 (-29, 73.3E) |
| Drawing | 18 | 94 | HH_ – 4 (8, 30.6W), DAI – 7 (9, 55.7E), AX_ – 1 (-7, 75.5W), FKC – 17 (-4, 38.4E), HS_ – 1 (-30, 56.6E), DSO – 4 (-4, 63.5E) |
| Drawing | 21 | 143 | AX_ – 3 (7, 71.8W), CAI – 7 (4, 52.6W), DAI – 20 (10, 17.4E), DAI – 23 (-3, 06.9W), AX_ – 1 (-4, 19.5E), CAI – 4 (-30, 21.6E), HS_ – 1 (-4, 28.4E), CAI – 4 (-26, 69.8E) |
| Drawing | 22 | 99 | DAI – 13 (11, 03.7E), BXI – 2 (-14, 54.6W), DAI – 11 (-2, 21.6W), CSI – 6 (-8, 18.5E), BXI – 4 (-13, 48.5E), HS_ – 3 (-25, 57.8E) |
| Drawing | 23 | 131 | ESC – 14 (11, 08.8W), ?__ – 9 (-3, 34.2W), HS_ – 1 (-31, 05.7W), DAI – 9 (-8, 04.8E), DKC – 12 (-13, 33.7E), ?__ – 3 (-26, 42.9E), AX_ – 1 (-1, 45.4E), HA_ – 2 (-17, 69.7E) |
| Drawing | 25 | 181 | DSC – 11 (10, 36.8W), AX_ – 1 (15, 01.3E), BXI – 12 (11, 32.6E), HA_ – 1 (6, 64.6E), HS_ – 2 (-3, 62.4W), HR_ – 1 (-20, 51.5W), HS_ – 1 (-32, 30.3W), CRO – 3 (-9, 22.8W), DSI – 13 (-13, 05.9E), HS_ – 1 (-25, 18.4E), HS_ – 1 (-17, 43.5E), AX_ – 1 (-13, 54.7E), BXO – 3 (-17, 68.0E) |
| Drawing | 28 | 98 | CAI – 4 (10, 73.5W), HS_ – 1 (5, 26.6E), HS_ – 1 (-32, 66.7W), DAI – 9 (-14, 33.5W), AX_ – 4 (-26, 17.2W), CAI – 7 (-19, 05.7E), AX_ – 2 (-17, 28.2E) |
| Drawing | 29 | 91 | BXI – 4 (15, 48.8W), HS_ – 1 (5, 13.7E), EKC – 3 (8, 77.6E), BXO – 1 (-32, 79.6W), DSC – 6 (-12, 46.5W), BXI – 5 (-19, 06.6W), AX_ – 1 (-16, 14.5E) |
| Drawing | 30 | 74 | CHO – 2 (5, 00.5E), EKC – 18 (7, 62.5E), CAO – 6 (-12, 63.9W), ?__ – 8 (-19, 20.6W) |
