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

11272 80.71 337.03 45.75 191.16 -21.10 53.51 -8.05 164.50 0.4892 81.7 -142.7


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

SDO HMI 2011-08-21 18:59:09 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 1.17 0.00 0.64 -18.52 59.24 -2.32 174.88 0.4328 641.0 478.2
2 0.00 1.17 0.00 0.64 -17.62 58.45 -3.11 172.90 0.4199 835.0 697.2
3 0.00 1.80 0.00 0.99 -18.43 58.41 -3.15 173.04 0.4327 419.0 379.2
4 0.00 1.44 0.00 0.78 -17.29 57.98 -3.58 171.72 0.4157 886.0 782.9
5 0.00 1.17 0.00 0.64 -17.40 57.73 -3.84 171.18 0.4180 851.0 723.5
6 15.19 67.13 8.59 37.99 -21.47 56.39 -5.18 169.97 0.4842 1184.8 427.8
7 1.62 2.25 0.92 1.28 -21.97 55.74 -5.82 168.97 0.4933 701.1 656.6
8 11.86 24.80 6.68 13.98 -20.70 54.75 -6.81 166.52 0.4777 992.2 509.2
9 3.95 -8.00 2.24 -8.00 -21.08 54.60 -6.96 166.43 0.4839 678.1 999999
10 0.00 1.26 0.00 0.71 -20.40 54.60 -6.96 166.07 0.4737 101.0 159.3
11 0.00 1.71 0.00 0.97 -21.23 54.37 -7.20 166.06 0.4868 625.0 482.1
12 4.58 216.58 2.58 123.00 -20.68 54.16 -7.40 165.39 0.4795 812.4 -379.4
13 0.36 1.44 0.20 0.82 -21.37 53.80 -7.76 165.10 0.4912 911.2 736.6
14 0.00 2.88 0.00 1.64 -21.65 53.79 -7.78 165.23 0.4953 474.0 604.9
15 4.76 -12.00 2.68 -12.00 -20.48 53.68 -7.88 164.37 0.4785 903.0 999999
16 1.17 -12.00 0.66 -12.00 -20.90 53.53 -8.03 164.33 0.4852 -566.6 999999
17 1.26 -12.00 0.71 -12.00 -20.83 53.30 -8.26 163.87 0.4852 237.6 999999
18 2.61 -12.00 1.48 -12.00 -20.97 53.26 -8.30 163.88 0.4874 -676.3 999999
19 1.89 -12.00 1.06 -12.00 -20.42 53.26 -8.30 163.54 0.4794 713.6 999999
20 0.00 1.26 0.00 0.71 -19.95 53.19 -8.37 163.10 0.4727 -808.0 -647.9
21 1.53 -12.00 0.87 -12.00 -21.39 52.98 -8.59 163.62 0.4947 -784.9 999999
22 1.44 -12.00 0.82 -12.00 -21.29 52.75 -8.81 163.15 0.4943 -787.9 999999
23 1.62 -12.00 0.92 -12.00 -21.05 52.50 -9.06 162.55 0.4920 -956.1 999999
24 5.39 -12.00 3.08 -12.00 -21.44 52.18 -9.38 162.23 0.4990 -911.7 999999
25 13.12 -12.00 7.47 -12.00 -21.00 51.85 -9.71 161.34 0.4943 -1249.0 999999
26 0.00 0.81 0.00 0.46 -21.76 51.80 -9.77 161.76 0.5053 -593.0 -527.8
27 2.25 -12.00 1.28 -12.00 -21.25 51.44 -10.13 160.78 0.4998 -1044.3 999999
28 4.58 -12.00 2.63 -12.00 -21.49 51.22 -10.34 160.58 0.5044 -904.3 999999
29 1.53 -12.00 0.88 -12.00 -21.64 51.01 -10.55 160.32 0.5075 -718.3 999999
30 0.00 4.58 0.00 2.64 -21.89 50.76 -10.80 160.07 0.5122 -750.0 -638.7
31 0.00 1.53 0.00 0.88 -22.03 50.61 -10.95 159.93 0.5150 -607.0 -481.1
32 0.00 0.36 0.00 0.21 -24.35 49.06 -12.50 159.09 0.5548 -622.0 -634.8
33 0.00 0.90 0.00 0.53 -23.36 49.02 -12.54 158.32 0.5417 -639.0 -570.1
34 0.00 1.44 0.00 0.84 -22.45 49.07 -12.49 157.71 0.5291 -707.0 -561.2
35 0.00 1.35 0.00 0.81 -24.80 48.12 -13.44 158.01 0.5657 -417.0 -332.7


  • 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.