Monthly Sunspot Classification and Coordinates
April 2017 Monthly report →
Each group: class – number of spots (B, ΔL). NS: No sunspot.
| Drawing | Day | R | Classification and Coordinates |
|---|---|---|---|
| Drawing | 01 | 89 | CSO – 10 (13, 45W), HS_ – 4 (13, 36W), BXO – 3 (11, 02W), EKC – 32 (-9, 02W) |
| Drawing | 02 | 100 | EKC – 27 (12, 54W), EKC – 39 (-10, 14W), BXO – 4 (-3, 77E) |
| Drawing | 03 | 109 | FSC – 19 (12, 67W), CRI – 6 (14, 47W), FSC – 35 (-10, 27W), BXI – 9 (-3, 61E) |
| Drawing | 04 | 54 | BXO – 3 (15, 66W), EAC – 17 (-10, 45W), BXO – 4 (-3, 42E) |
| Drawing | 05 | 35 | EAC – 9 (-10, 58W), BXI – 6 (-3, 29E) |
| Drawing | 06 | 37 | EAC – 27 (-9, 70W) |
| Drawing | 08 | 0 | NS |
| Drawing | 09 | 11 | AX_ – 1 (8, 75E) |
| Drawing | 10 | 26 | HA_ – 3 (7, 64E), AX_ – 3 (9, 70E) |
| Drawing | 11 | 16 | CSI – 6 (8, 52E) |
| Drawing | 12 | 25 | CSO – 4 (9, 39E), AX_ – 1 (18, 47E) |
| Drawing | 13 | 26 | CRO – 3 (9, 23E), BXI – 3 (14, 30E) |
| Drawing | 14 | 16 | CAI – 6 (10, 14E) |
| Drawing | 16 | 0 | NS |
| Drawing | 17 | 0 | NS |
| Drawing | 19 | 25 | AX_ – 1 (12, 29W), DAC – 4 (12, 66E) |
| Drawing | 20 | 37 | CSI – 16 (12, 55E), AX_ – 1 (12, 69E) |
| Drawing | 21 | 42 | DSI – 10 (12, 40E), AX_ – 1 (13, 55E), HS_ – 1 (-9, 84E) |
| Drawing | 22 | 33 | DAI – 10 (12, 28E), HS_ – 3 (-8, 71E) |
| Drawing | 23 | 46 | DSI – 10 (12, 14E), BXO – 2 (15, 25E), HA_ – 4 (-9, 56E) |
| Drawing | 24 | 47 | DAI – 8 (12, 02E), HA_ – 7 (13, 11E), HS_ – 2 (-8, 44E) |
| Drawing | 25 | 41 | DAO – 4 (11, 12W), BXO – 5 (14, 05W), HA_ – 2 (-9, 31E) |
| Drawing | 26 | 49 | DSO – 6 (10, 25W), BXI – 8 (13, 15W), CSO – 5 (-10, 19E) |
| Drawing | 27 | 23 | CSO – 2 (12, 40W), HS_ – 1 (-8, 03E) |
| Drawing | 28 | 39 | DSO – 2 (11, 51W), AX_ – 3 (11, 62E), CSI – 4 (-10, 08W) |
| Drawing | 29 | 46 | CAO – 2 (11, 65W), AX_ – 1 (20, 51W), AX_ – 1 (11, 48E), HA_ – 2 (-9, 23W) |
| Drawing | 30 | 22 | AX_ – 1 (12, 82W), AX_ – 1 (-8, 37W) |
