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

12143 21.78 100.53 11.30 52.10 -5.16 30.14 11.35 222.95 0.2947 131.6 268.8


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

SDO HMI 2014-08-20 01:00:38 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 1.62 0.00 0.86 -1.24 37.56 18.76 247.29 0.3501 20.0 15.6
2 3.42 16.11 1.79 8.43 -4.22 34.23 15.43 234.69 0.3267 875.6 788.4
3 5.04 -2.00 2.64 -2.00 -4.31 33.97 15.18 234.03 0.3241 1057.0 999999
4 1.44 3.15 0.75 1.64 -4.05 32.59 13.80 232.00 0.3032 953.2 756.1
5 0.00 0.90 0.00 0.47 -4.82 32.57 13.78 230.01 0.3111 759.0 656.0
6 3.33 6.48 1.73 3.37 -4.31 32.31 13.52 230.73 0.3024 1058.0 814.1
7 0.00 8.19 0.00 4.26 -4.80 32.01 13.22 228.85 0.3039 956.0 794.9
8 0.00 1.26 0.00 0.65 -3.87 31.87 13.07 230.94 0.2920 860.0 696.1
9 0.00 1.98 0.00 1.03 -4.98 31.82 13.03 228.00 0.3036 901.0 747.0
10 0.00 4.59 0.00 2.38 -4.60 31.60 12.81 228.44 0.2966 791.0 770.4
11 0.00 0.90 0.00 0.47 -6.68 31.55 12.76 223.47 0.3202 699.0 637.1
12 0.00 1.44 0.00 0.74 -3.61 31.30 12.51 230.39 0.2819 783.0 613.2
13 0.00 8.82 0.00 4.56 -4.56 31.07 12.28 227.33 0.2895 1104.0 869.5
14 0.00 3.15 0.00 1.63 -5.27 30.98 12.19 225.39 0.2968 706.0 648.1
15 0.00 1.17 0.00 0.61 -5.61 30.87 12.08 224.30 0.2994 760.0 537.9
16 0.90 2.88 0.46 1.49 -4.73 30.45 11.66 225.41 0.2840 802.4 631.2
17 0.00 1.17 0.00 0.60 -1.70 30.14 11.35 233.29 0.2464 842.0 617.6
18 0.00 0.54 0.00 0.28 -5.36 29.56 10.77 221.58 0.2814 -466.0 -320.0
19 0.00 1.35 0.00 0.70 -5.63 29.47 10.68 220.70 0.2840 -696.0 -618.0
20 0.00 1.44 0.00 0.74 -5.47 29.34 10.55 220.73 0.2806 -531.0 -595.7
21 0.00 1.17 0.00 0.60 -5.97 29.10 10.31 218.96 0.2844 -709.0 -572.7
22 6.12 14.22 3.15 7.33 -5.50 29.06 10.27 219.91 0.2779 -1092.3 -781.6
23 0.00 0.72 0.00 0.37 -5.84 29.07 10.28 219.15 0.2824 -943.0 -757.2
24 1.17 2.97 0.60 1.52 -4.41 28.71 9.92 221.56 0.2600 -1097.0 -775.2
25 0.00 1.80 0.00 0.92 -4.59 28.59 9.80 220.74 0.2610 -998.0 -779.8
26 0.00 1.35 0.00 0.69 -3.64 26.02 7.23 214.70 0.2217 841.0 631.6
27 0.00 1.35 0.00 0.68 -4.96 23.01 4.22 199.69 0.2184 -801.0 -550.0
28 0.00 0.90 0.00 0.46 -7.63 22.14 3.34 193.02 0.2579 -797.0 -647.0
29 0.36 1.71 0.18 0.87 -6.29 21.82 3.03 193.01 0.2344 -1027.5 -857.5
30 0.00 1.89 0.00 0.97 -7.16 21.73 2.94 191.88 0.2486 -879.0 -687.9
31 0.00 0.90 0.00 0.46 -7.98 21.65 2.86 190.91 0.2619 -785.0 -623.4
32 0.00 0.63 0.00 0.33 -13.38 21.10 2.31 186.46 0.3497 -10.0 -0.6
33 0.00 1.71 0.00 0.90 -13.41 20.57 1.78 184.98 0.3493 -9.0 -4.6
34 0.00 2.07 0.00 1.09 -12.79 13.28 -5.51 164.41 0.3501 9.0 2.4


  • 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.