groupProj. UProj. WSCorr. UCorr. WS BLLCMPos. angler MU MP

11271 89.42 425.59 96.54 460.54 15.47 60.46 -63.32 75.98 0.8875 -102.5 -18.9


previous   or   next   observation for the same group / back to the solar disc

SDO HMI 2011-08-17 01:59:09 UT

No observation available
See sunspots with tool (Click here to study sunspot positions and configurations with tool using white-light and magnetogram images and polarity drawing)
(It is recommended to set high resolution on your display!)


spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler MU MP

1 0.00 0.45 0.00 0.39 14.90 67.73 -56.05 76.53 0.8265 -529.0 -480.8
2 0.00 1.26 0.00 1.29 20.36 62.31 -61.47 70.42 0.8762 -446.0 -402.5
3 27.38 189.53 25.87 180.62 15.86 64.83 -58.95 75.49 0.8533 -906.8 -212.8
4 10.36 -3.00 9.99 -3.00 15.63 64.07 -59.71 75.78 0.8599 -426.8 999999
5 0.00 1.08 0.00 1.10 18.23 62.33 -61.45 72.85 0.8751 -344.0 -309.9
6 0.00 3.33 0.00 3.35 14.95 62.60 -61.18 76.60 0.8722 -547.0 -410.0
7 3.51 51.53 3.70 54.37 17.19 61.18 -62.61 74.07 0.8840 -498.4 39.9
8 0.00 3.15 0.00 3.21 15.10 62.19 -61.59 76.44 0.8755 29.0 16.6
9 10.81 -7.00 11.31 -7.00 16.64 61.30 -62.49 74.70 0.8829 -688.2 999999
10 0.00 1.08 0.00 1.12 16.13 61.58 -62.20 75.27 0.8806 -382.0 -370.9
11 0.00 3.60 0.00 3.68 14.81 62.14 -61.65 76.76 0.8759 280.0 201.2
12 0.90 2.43 0.98 2.65 17.80 60.01 -63.77 73.42 0.8930 -303.9 -281.4
13 0.99 5.31 1.08 5.76 15.39 60.11 -63.68 76.13 0.8920 601.3 560.2
14 0.00 1.44 0.00 1.59 15.37 59.68 -64.10 76.14 0.8952 583.0 533.2
15 5.67 16.66 6.26 18.50 15.00 59.67 -64.11 76.57 0.8953 790.8 521.3
16 2.07 -15.00 2.31 -15.00 15.24 59.32 -64.47 76.29 0.8979 594.1 999999
17 0.00 0.99 0.00 1.14 16.15 58.39 -65.39 75.28 0.9047 484.0 474.8
18 1.44 2.16 1.64 2.45 15.29 58.84 -64.94 76.24 0.9014 501.4 520.9
19 0.00 0.72 0.00 0.83 15.83 58.36 -65.42 75.64 0.9049 609.0 536.9
20 0.00 1.53 0.00 1.94 18.93 55.93 -67.85 72.25 0.9215 487.0 435.8
21 0.00 1.17 0.00 1.38 15.77 57.78 -66.00 75.70 0.9090 303.0 244.8
22 0.00 1.44 0.00 1.82 18.14 55.99 -67.79 73.11 0.9211 482.0 475.0
23 0.00 3.42 0.00 4.34 17.86 55.78 -68.00 73.41 0.9224 492.0 408.1
24 0.00 0.63 0.00 0.76 15.84 57.26 -66.52 75.62 0.9126 174.0 216.1
25 1.89 5.04 2.51 6.67 18.96 54.75 -69.03 72.23 0.9289 238.3 192.6
26 0.00 1.71 0.00 2.03 15.22 57.58 -66.20 76.31 0.9105 441.0 371.9
27 1.35 9.19 1.76 11.99 18.43 55.14 -68.65 72.80 0.9266 414.5 240.7
28 3.69 -27.00 4.80 -27.00 18.18 55.17 -68.61 73.07 0.9263 466.0 999999
29 0.00 1.35 0.00 1.62 14.98 57.41 -66.37 76.57 0.9116 191.0 178.1
30 0.00 1.62 0.00 2.12 17.76 55.08 -68.70 73.53 0.9269 80.0 27.9
31 0.00 1.35 0.00 1.77 17.90 54.96 -68.82 73.37 0.9276 -288.0 -198.5
32 15.31 112.42 19.18 142.05 13.91 56.20 -67.59 77.71 0.9200 716.3 67.8
33 4.05 -32.00 5.15 -32.00 13.94 55.85 -67.94 77.68 0.9223 -270.6 999999


  • Proj. U -  Projected umbra area in millionths of solar disc, negative values indicate
    that the umbra consists of fragmented regions which cannot be separated without losing umbral area.
    In this way several spots (intensity minima in the umbra) have a common umbra, e.g. -2 means that
    the given spot shares an umbra with spot No.2, and the common U value is indicated at spot No.2.
  • Proj. WS -  Projected whole spot area in millionths of solar disc, negative values indicate
    that several umbras have a common penumbra, e.g. -7 means that the given umbra shares
    a penumbra with umbra No.7, and the WS value is indicated at No.7.
  • Corr. U -  Corrected umbra area in millionths of solar hemisphere, for negative values see above
  • Corr. WS -  Corrected whole spot area in millionths of solar hemisphere, for negative values see above
  • B -  Heliographic latitude B; positive: North, negative: South
  • L -  Heliographic longitude L
  • LCM -  Longitudinal distance from the Sun's central meridian
  • Pos. angle -  Position angle
  • r -  Distance from the centre of Sun's disc in terms of Sun's radius
  • MU -  Mean magnetic field within the umbra contour averaged the pixel values with sign.
  • MP -  Mean magnetic field within the penumbra contour averaged the pixel values with sign.