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

12042 63.52 393.46 35.23 218.19 17.76 166.55 14.14 328.83 0.4510 -596.2 -310.1


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

SDO HMI 2014-04-23 02:00:35 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 60.50 358.27 33.59 198.98 17.74 166.96 14.55 328.02 0.4537 -1274.6 -411.9
2 0.00 0.89 0.00 0.49 17.22 165.42 13.01 330.19 0.4344 -638.0 -575.8
3 0.00 1.07 0.00 0.58 17.12 165.09 12.68 330.70 0.4304 446.0 294.2
4 0.00 0.98 0.00 0.53 17.36 163.72 11.31 333.66 0.4236 768.0 516.0
5 0.00 1.24 0.00 0.68 18.00 163.27 10.87 335.23 0.4297 802.0 656.2
6 0.00 2.49 0.00 1.37 18.92 163.07 10.67 336.53 0.4415 685.0 533.3
7 0.00 2.67 0.00 1.46 18.29 163.00 10.59 336.07 0.4321 771.0 615.2
8 0.00 7.11 0.00 3.89 18.03 162.86 10.45 336.10 0.4274 956.0 857.3
9 0.00 0.98 0.00 0.54 18.91 162.72 10.31 337.23 0.4392 605.0 520.4
10 0.00 0.80 0.00 0.44 17.96 162.50 10.09 336.76 0.4241 871.0 779.3
11 0.00 1.87 0.00 1.03 18.91 162.52 10.12 337.61 0.4380 800.0 616.1
12 0.00 1.33 0.00 0.73 17.89 162.27 9.86 337.16 0.4217 668.0 608.4
13 0.00 0.80 0.00 0.44 18.94 162.23 9.83 338.21 0.4367 696.0 537.2
14 0.00 1.24 0.00 0.68 18.51 161.85 9.45 338.59 0.4282 752.0 562.0
15 0.00 1.51 0.00 0.82 17.16 161.59 9.18 337.90 0.4069 834.0 710.6
16 0.71 3.46 0.39 1.88 17.55 161.38 8.98 338.71 0.4114 844.0 720.0
17 0.71 2.49 0.39 1.35 17.64 160.40 7.99 340.94 0.4073 859.0 680.0
18 1.60 4.26 0.86 2.30 17.24 160.32 7.91 340.79 0.4010 1030.1 809.1


  • 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.