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

11328 18.18 48.48 9.31 24.95 18.20 324.61 -8.96 33.01 0.2691 449.9 320.6


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

SDO HMI 2011-10-21 23:59:01 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 1.31 0.00 0.66 14.40 327.27 -6.30 33.98 0.1910 819.0 555.6
2 7.57 12.36 3.86 6.29 17.01 326.78 -6.79 29.18 0.2329 -1055.7 -877.1
3 2.61 5.66 1.33 2.89 17.19 326.40 -7.17 30.12 0.2387 -954.1 -704.8
4 0.00 2.61 0.00 1.34 18.12 325.28 -8.29 31.71 0.2618 860.0 594.3
5 0.00 1.13 0.00 0.58 17.56 324.87 -8.70 34.19 0.2578 814.0 685.8
6 0.00 0.96 0.00 0.49 19.03 324.54 -9.03 32.02 0.2812 666.0 579.5
7 0.00 1.39 0.00 0.72 19.21 324.53 -9.04 31.69 0.2838 663.0 556.2
8 0.78 5.92 0.40 3.06 18.78 324.07 -9.50 33.83 0.2819 1244.3 874.0
9 7.22 8.96 3.72 4.62 18.44 323.99 -9.57 34.76 0.2780 1173.5 898.2
10 0.00 1.13 0.00 0.58 18.49 323.54 -10.02 35.85 0.2831 896.0 724.7
11 0.00 1.65 0.00 0.85 18.31 323.49 -10.08 36.40 0.2812 906.0 756.5
12 0.00 1.04 0.00 0.55 20.25 320.19 -13.38 39.96 0.3396 926.0 684.8
13 0.00 1.22 0.00 0.64 20.15 319.80 -13.77 40.93 0.3425 898.0 753.9
14 0.00 0.96 0.00 0.51 20.38 319.26 -14.31 41.51 0.3512 653.0 517.4
15 0.00 2.18 0.00 1.17 22.98 318.49 -15.08 38.10 0.3899 722.0 586.2


  • 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.