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

11272 20.70 105.50 14.39 73.53 -20.89 56.68 -35.74 129.17 0.7056 400.2 308.5


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

SDO HMI 2011-08-19 10:59:09 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 3.06 0.00 2.03 -20.25 60.15 -32.26 131.16 0.6675 488.0 396.5
2 0.00 0.63 0.00 0.41 -18.11 60.55 -31.87 128.86 0.6467 439.0 419.6
3 0.00 1.26 0.00 0.81 -16.95 59.99 -32.43 126.91 0.6438 370.0 404.5
4 15.66 65.45 10.85 45.26 -20.93 57.21 -35.21 129.59 0.7011 929.9 428.5
5 0.00 0.90 0.00 0.60 -18.26 57.84 -34.58 126.85 0.6758 621.0 498.8
6 5.04 15.12 3.54 10.62 -21.36 56.57 -35.85 129.60 0.7101 517.0 154.4
7 0.00 1.17 0.00 0.84 -23.17 55.82 -36.60 131.11 0.7297 -649.0 -473.3
8 0.00 1.80 0.00 1.26 -20.78 56.45 -35.97 128.84 0.7073 289.0 331.6
9 0.00 1.17 0.00 0.83 -21.90 56.13 -36.29 129.90 0.7181 387.0 276.4
10 0.00 1.26 0.00 0.88 -20.73 56.26 -36.15 128.64 0.7087 393.0 263.8
11 0.00 1.26 0.00 0.86 -18.21 56.75 -35.66 125.96 0.6865 619.0 542.4
12 0.00 2.16 0.00 1.49 -18.79 56.01 -36.40 126.14 0.6980 714.0 617.8
13 0.00 1.26 0.00 0.88 -19.56 55.61 -36.80 126.78 0.7071 569.0 498.8
14 0.00 0.54 0.00 0.37 -18.75 55.70 -36.71 125.87 0.7008 364.0 341.8
15 0.00 1.35 0.00 0.93 -18.11 55.38 -37.03 124.86 0.6999 415.0 412.0
16 0.00 0.99 0.00 0.70 -19.42 54.84 -37.57 126.06 0.7137 373.0 357.3
17 0.00 1.26 0.00 0.93 -20.57 52.59 -39.82 125.92 0.7426 -766.0 -602.8
18 0.00 1.17 0.00 0.94 -25.65 50.66 -41.75 130.33 0.7897 -595.0 -476.0
19 0.00 1.26 0.00 1.03 -25.58 49.46 -42.95 129.52 0.7990 -314.0 -235.4
20 0.00 1.17 0.00 0.89 -20.87 51.08 -41.33 125.30 0.7584 -661.0 -542.5
21 0.00 0.27 0.00 0.20 -20.46 51.09 -41.33 124.84 0.7561 -555.0 -565.7
22 0.00 0.99 0.00 0.77 -21.23 49.99 -42.42 125.06 0.7704 -656.0 -540.5


  • 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.