Istanbul University Faculty of Science

SOLAR OBSERVATIONS

Istanbul University Observatory · Sunspot observations since 1950

Observatory

Monthly Sunspot Classification and Coordinates

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June 2013 Monthly report →

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

DrawingDayRClassification and Coordinates
01 70 BXI – 7 (12, 34E), AX_ – 4 (-8, 15W), BXO – 2 (-29, 02E), AX_ – 1 (-22, 07E), CRO – 6 (-15, 09E)
02 79 BXI – 7 (12, 13W), AX_ – 1 (11, 19E), AX_ – 1 (-7, 29W), DAI – 13 (-29, 13W), BXI – 7 (-15, 07W)
03 99 DSI – 14 (11, 25W), AX_ – 2 (18, 28E), AX_ – 1 (-7, 41W), EKI – 15 (-29, 24W), BXO – 5 (-15, 18W), AX_ – 2 (-18, 03W)
04 72 CHI – 14 (12, 41W), HS_ – 2 (-28, 43W), AX_ – 2 (-15, 38W), HS_ – 14 (-29, 35W)
05 121 DAO – 6 (12, 51W), BXO – 5 (19, 31W), AX_ – 4 (19, 01E), AX_ – 6 (9, 28E), AX_ – 1 (-15, 49W), EAO – 13 (-29, 49W), BXI – 5 (-14, 40W), AX_ – 1 (-2, 14W)
06 83 CSO – 6 (12, 65W), BXO – 5 (18, 45W), CSO – 18 (8, 14E), CHI – 14 (-30, 63W)
07 46 DSC – 18 (10, 01E), CSI – 8 (-29, 73W)
08 35 DSC – 25 (9, 13W)
09 35 DSC – 25 (9, 28W)
10 38 DAO – 17 (10, 38W), AX_ – 1 (13, 34E)
11 25 CAO – 4 (9, 55W), AX_ – 1 (-31, 36E)
12 42 AX_ – 2 (9, 72W), BXI – 9 (-10, 11W), AX_ – 1 (-7, 22E)
13 105 AX_ – 2 (10, 15W), AX_ – 1 (13, 10W), AX_ – 2 (-12, 32W), CRI – 25 (-11, 25W), BXO – 3 (-23, 68E), AX_ – 1 (-19, 73E), HS_ – 1 (-14, 74E)
14 77 DKI – 17 (-10, 38W), CRO – 3 (-23, 54E), BXI – 5 (-20, 60E), HS_ – 1 (-14, 61E), AX_ – 1 (-12, 70E)
15 148 ?__ – 1 (4, 75E), DAI – 26 (-11, 48W), AX_ – 3 (-23, 43E), HS_ – 4 (-23, 48E), CRO – 12 (-20, 53E), HS_ – 2 (-14, 53E), AX_ – 2 (-12, 62E), HS_ – 7 (-18, 69E), ?__ – 1 (-20, 74E)
16 129 CAO – 3 (4, 61E), DAO – 5 (-12, 62W), AX_ – 2 (-24, 34E), CRI – 20 (-21, 38E), HS_ – 1 (-15, 39E), CAO – 10 (-19, 56E), ?__ – 7 (-26, 70E), AX_ – 1 (-19, 73E)
17 133 CRI – 15 (4, 48E), ?__ – 4 (-12, 74W), AX_ – 1 (-23, 20E), DAI – 23 (-21, 24E), HS_ – 1 (-15, 26E), CAO – 6 (-18, 42E), DAC – 13 (-26, 56E)
18 143 CRI – 23 (4, 35E), ?__ – 1 (-11, 84W), DRI – 21 (-20, 12E), HS_ – 1 (-14, 14E), AX_ – 1 (-23, 23E), CAI – 10 (-18, 28E), DKC – 16 (-27, 44E)
19 145 BXI – 7 (11, 01E), DAI – 30 (3, 21E), DAI – 22 (-21, 01W), HH_ – 1 (-14, 00E), BXI – 8 (-17, 13E), HK_ – 17 (-27, 31E)
20 137 CAO – 9 (11, 12W), EAO – 17 (2, 07E), DAO – 24 (-21, 15W), HS_ – 1 (-15, 13W), DSO – 2 (-17, 00E), CKO – 13 (-27, 19E), ?__ – 1 (-17, 83E)
21 190 DSI – 27 (12, 24W), CSI – 7 (4, 08W), ESC – 33 (-21, 27W), HS_ – 3 (-15, 24W), HS_ – 8 (-16, 12W), DSC – 17 (-26, 06E), AX_ – 1 (-16, 06E), AX_ – 1 (-14, 49E), HH_ – 3 (-15, 68E)
22 197 DAI – 22 (11, 40W), BXI – 18 (4, 23W), DAI – 18 (-22, 41W), HA_ – 2 (-15, 39W), CAI – 11 (-17, 25W), DAC – 17 (-27, 08W), AX_ – 2 (-16, 08W), AX_ – 1 (-14, 33E), HA_ – 5 (-15, 52E), ?__ – 1 (-17, 83E)
23 148 DAI – 15 (11, 53W), BXO – 6 (3, 36W), AX_ – 1 (14, 66E), CAI – 13 (-21, 56W), HR_ – 2 (-15, 53W), BXI – 7 (-16, 40W), DAC – 9 (-25, 21W), HS_ – 2 (-15, 39E), ?__ – 3 (-16, 71E)
24 149 DAI – 6 (11, 65W), CAO – 5 (-22, 68W), AX_ – 1 (-15, 66W), BXI – 9 (-16, 53W), DAC – 9 (-26, 34W), AX_ – 4 (-23, 15W), AX_ – 1 (-14, 07E), HS_ – 2 (-16, 27E), HA_ – 10 (-17, 58E), AX_ – 2 (-19, 67E)
25 155 ?__ – 3 (11, 78W), AX_ – 1 (5, 59W), AX_ – 2 (17, 63E), ?__ – 2 (-22, 78W), CAI – 8 (-26, 49W), AX_ – 1 (-23, 34W), AX_ – 2 (-21, 29W), HS_ – 2 (-16, 13E), HA_ – 9 (-16, 45E), AX_ – 1 (-13, 53E), AX_ – 3 (-18, 54E), AX_ – 1 (-16, 54E)
26 87 AX_ – 2 (15, 00W), BXO – 2 (17, 50E), HA_ – 2 (-25, 58W), HS_ – 1 (-16, 00W), AX_ – 1 (-9, 08E), AX_ – 2 (-9, 21E), HA_ – 7 (-16, 33E)
27 96 AX_ – 2 (18, 13W), AX_ – 2 (16, 39E), HA_ – 1 (-25, 71W), AX_ – 1 (-22, 61W), HS_ – 1 (-16, 13W), AX_ – 1 (-8, 07E), CRO – 18 (-17, 23E)
28 102 BXI – 6 (21, 03E), AX_ – 2 (17, 23E), HS_ – 1 (-17, 29W), AX_ – 1 (-11, 11W), BXI – 19 (-17, 07E), AX_ – 1 (-10, 36E), BXO – 2 (-14, 57E)
29 92 BXO – 12 (21, 09W), AX_ – 2 (15, 13E), HS_ – 1 (-17, 41W), CSO – 14 (-17, 05W), AX_ – 1 (-13, 30E), AX_ – 2 (-16, 42E)
30 50 DSI – 14 (23, 21W), HS_ – 1 (-16, 53W), CSI – 5 (-11, 35W)