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

12035 29.72 517.66 19.57 335.86 -14.92 224.06 39.15 252.49 0.6414 304.4 229.7


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

SDO HMI 2014-04-20 15:00:34 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 1.15 0.00 0.79 -9.83 228.76 43.86 261.17 0.6932 531.0 415.5
2 2.31 88.67 1.58 60.21 -10.73 228.88 43.97 259.87 0.6953 505.7 554.7
3 1.42 -2.00 0.97 -2.00 -11.16 228.87 43.97 259.26 0.6956 613.2 999999
4 10.73 -2.00 7.33 -2.00 -10.78 228.50 43.60 259.76 0.6907 855.1 999999
5 0.27 -2.00 0.18 -2.00 -11.36 227.98 43.07 258.86 0.6847 723.7 999999
6 0.00 1.42 0.00 0.95 -12.78 227.16 42.26 256.66 0.6763 -552.0 -491.2
7 0.00 1.15 0.00 0.76 -12.44 226.26 41.36 257.03 0.6644 -510.0 -430.9
8 0.00 1.06 0.00 0.70 -12.42 226.01 41.11 257.01 0.6612 -474.0 -254.2
9 0.00 1.33 0.00 0.87 -12.63 225.52 40.62 256.61 0.6553 -509.0 -430.3
10 0.53 12.50 0.35 8.13 -11.19 225.10 40.20 258.75 0.6478 607.0 -249.3
11 6.12 219.63 4.05 146.86 -15.83 225.89 40.99 251.88 0.6662 1178.6 270.3
12 0.71 15.43 0.46 9.93 -12.04 224.68 39.78 257.37 0.6435 828.4 634.8
13 0.00 0.71 0.00 0.46 -12.29 224.65 39.74 256.99 0.6434 597.0 518.4
14 0.00 1.60 0.00 1.02 -10.86 224.01 39.10 259.11 0.6331 718.0 598.8
15 2.22 7.63 1.38 4.76 -14.30 221.78 36.87 253.12 0.6099 992.2 755.6
16 0.00 0.71 0.00 0.44 -16.49 221.13 36.23 249.38 0.6077 501.0 471.2
17 0.00 0.89 0.00 0.55 -15.25 220.61 35.70 251.21 0.5969 973.0 857.0
18 0.00 0.71 0.00 0.44 -14.98 220.55 35.65 251.64 0.5954 792.0 657.0
19 0.00 2.48 0.00 1.53 -15.66 220.57 35.67 250.53 0.5977 769.0 655.0
20 0.00 0.98 0.00 0.59 -11.49 219.56 34.66 257.27 0.5735 636.0 527.9
21 0.00 1.68 0.00 1.03 -15.54 219.78 34.88 250.43 0.5868 438.0 347.5
22 0.62 148.96 0.38 90.60 -17.56 219.47 34.56 246.97 0.5899 -420.1 -4.2
23 0.00 0.89 0.00 0.54 -16.93 219.07 34.16 247.83 0.5823 -439.0 -417.4
24 0.00 0.89 0.00 0.52 -9.04 217.54 32.63 261.28 0.5409 465.0 401.4
25 4.79 -22.00 2.89 -22.00 -16.56 218.38 33.48 248.15 0.5719 -774.7 999999
26 0.00 0.98 0.00 0.60 -19.47 218.59 33.69 243.43 0.5869 -746.0 -681.3
27 0.00 1.51 0.00 0.90 -19.62 216.12 31.22 241.78 0.5562 -605.0 -494.9
28 0.00 0.44 0.00 0.26 -19.10 215.19 30.29 242.09 0.5414 -629.0 -653.6
29 0.00 1.51 0.00 0.86 -19.60 211.90 27.00 238.83 0.5018 -694.0 -576.4
30 0.00 1.86 0.00 1.06 -19.17 211.76 26.85 239.50 0.4971 -812.0 -581.8
31 0.00 0.89 0.00 0.50 -19.18 211.44 26.53 239.22 0.4930 -752.0 -648.4


  • 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.