Monthly Sunspot Classification and Coordinates

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March 2017 Monthly report →

Each group: class – number of spots (B, ΔL). NS: No sunspot.

DrawingDayRClassification and Coordinates
Drawing 01 66 HS_ – 1 (15, 47W), AX_ – 2 (8, 10W), DSC – 10 (14, 18E), DSC – 13 (13, 27E)
Drawing 03 78 HH_ – 1 (15, 73W), BXI – 5 (8, 35W), BXI – 3 (14, 06W), BXI – 15 (15, 03E), BXI – 4 (5, 63E)
Drawing 04 0 NS
Drawing 05 15 BXO – 5 (13, 19W)
Drawing 06 12 AX_ – 2 (14, 34W)
Drawing 07 11 AX_ – 1 (15, 48W)
Drawing 08 0 NS
Drawing 10 0 NS
Drawing 15 11 AX_ – 1 (-5, 09E)
Drawing 16 0 NS
Drawing 17 0 NS
Drawing 18 0 NS
Drawing 20 0 NS
Drawing 21 12 AX_ – 2 (9, 78E)
Drawing 22 13 CSO – 3 (8, 66E)
Drawing 23 12 AX_ – 2 (8, 51E)
Drawing 24 12 HA_ – 2 (8, 39E)
Drawing 25 23 AX_ – 2 (8, 25E), AX_ – 1 (13, 55E)
Drawing 26 20 BXI – 10 (12, 40E)
Drawing 28 59 AX_ – 2 (6, 65W), DAI – 16 (13, 14E), CAI – 11 (-9, 53E)
Drawing 29 78 AX_ – 1 (7, 73W), DSI – 20 (13, 00E), DSI – 27 (-9, 39E)
Drawing 30 28 DSO – 2 (12, 14W), EKC – 6 (-9, 25E)
Drawing 31 77 ESO – 10 (10, 25W), EKC – 47 (-11, 13E)