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

12044 29.92 89.94 18.98 57.02 -20.17 140.17 -36.46 116.35 0.6239 81.6 169.7


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

SDO HMI 2014-04-21 06:00:35 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 0.00 0.36 0.00 0.21 -18.46 145.79 -30.84 116.55 0.5457 777.0 733.2
2 0.00 0.27 0.00 0.16 -18.86 145.56 -31.07 117.09 0.5507 676.0 646.7
3 0.00 1.24 0.00 0.74 -18.60 145.28 -31.35 116.48 0.5531 815.0 706.6
4 0.00 0.89 0.00 0.53 -19.65 144.56 -32.07 117.83 0.5676 828.0 663.2
5 7.10 9.59 4.22 5.69 -17.71 144.90 -31.73 114.74 0.5538 941.1 542.4
6 0.89 4.44 0.53 2.65 -17.97 144.58 -32.05 115.02 0.5591 683.6 584.5
7 0.00 1.60 0.00 0.96 -19.01 144.21 -32.42 116.57 0.5689 819.0 688.3
8 0.00 0.80 0.00 0.48 -17.87 144.38 -32.25 114.74 0.5614 613.0 455.7
9 0.00 0.53 0.00 0.32 -18.23 144.12 -32.51 115.21 0.5664 493.0 413.8
10 0.00 1.51 0.00 0.90 -17.05 144.17 -32.46 113.24 0.5606 726.0 645.5
11 0.00 1.24 0.00 0.76 -19.21 143.02 -33.61 116.24 0.5849 -745.0 -621.1
12 0.44 1.42 0.27 0.87 -18.90 142.40 -34.23 115.42 0.5914 -713.4 -611.5
13 0.89 2.49 0.56 1.55 -20.02 141.11 -35.52 116.57 0.6126 863.9 702.2
14 0.00 0.27 0.00 0.17 -22.31 140.26 -36.37 119.62 0.6334 486.0 571.7
15 0.00 1.15 0.00 0.74 -21.77 140.22 -36.41 118.79 0.6313 520.0 464.4
16 0.00 1.33 0.00 0.83 -18.12 141.15 -35.48 113.59 0.6041 809.0 628.7
17 0.00 0.98 0.00 0.62 -20.43 140.52 -36.11 116.91 0.6216 764.0 627.3
18 2.84 10.74 1.79 6.79 -20.08 140.46 -36.17 116.35 0.6208 934.8 549.4
19 0.89 2.84 0.56 1.79 -19.86 140.36 -36.27 115.95 0.6211 808.6 558.2
20 0.00 0.80 0.00 0.50 -20.01 140.24 -36.39 116.13 0.6232 298.0 404.4
21 0.53 1.86 0.34 1.19 -20.04 139.71 -36.92 115.94 0.6298 542.2 441.0
22 0.00 4.88 0.00 3.12 -19.48 139.14 -37.49 114.84 0.6346 798.0 668.4
23 0.00 0.98 0.00 0.63 -19.71 138.87 -37.76 115.08 0.6387 687.0 547.6
24 0.98 2.13 0.63 1.38 -20.76 138.48 -38.15 116.48 0.6475 -848.5 -747.2
25 10.74 23.79 7.04 15.62 -21.94 138.03 -38.60 118.00 0.6577 -998.6 -590.0
26 0.00 1.24 0.00 0.80 -20.23 138.48 -38.15 115.68 0.6455 -807.0 -669.5
27 0.00 2.04 0.00 1.32 -19.79 138.52 -38.11 115.05 0.6432 714.0 546.3
28 4.62 -25.00 3.04 -25.00 -21.73 137.72 -38.91 117.56 0.6604 -753.3 999999
29 0.00 2.49 0.00 1.65 -22.11 137.05 -39.58 117.81 0.6697 -512.0 -458.3
30 0.00 1.24 0.00 0.82 -20.35 137.33 -39.30 115.39 0.6597 -751.0 -653.8
31 0.00 1.51 0.00 1.00 -21.09 136.89 -39.74 116.28 0.6676 -817.0 -693.4
32 0.00 0.80 0.00 0.54 -22.14 136.45 -40.18 117.60 0.6767 -416.0 -308.3
33 0.00 1.60 0.00 1.08 -21.95 135.91 -40.72 117.11 0.6820 -497.0 -369.3
34 0.00 0.89 0.00 0.61 -19.09 133.94 -42.70 112.39 0.6954 483.0 389.2


  • 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.