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

12005 74.48 492.00 44.89 294.48 12.09 261.74 28.32 304.38 0.5626 -776.9 -343.0


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

SDO HMI 2014-03-20 16:00:30 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 74.48 454.56 44.89 273.70 12.07 262.57 29.15 303.22 0.5716 -1451.3 -399.9
2 0.00 0.52 0.00 0.32 16.23 261.71 28.29 309.92 0.5956 -405.0 -460.0
3 0.00 1.05 0.00 0.63 15.60 260.32 26.90 310.48 0.5751 -645.0 -472.4
4 0.00 2.87 0.00 1.71 13.75 259.93 26.52 308.28 0.5546 -712.0 -465.0
5 0.00 1.48 0.00 0.87 12.69 259.77 26.36 306.88 0.5436 -863.0 -769.9
6 0.00 0.61 0.00 0.36 13.04 259.81 26.40 307.37 0.5471 -705.0 -552.3
7 0.00 2.00 0.00 1.18 12.27 259.66 26.24 306.37 0.5387 -948.0 -779.6
8 0.00 1.48 0.00 0.89 15.67 259.25 25.84 311.71 0.5643 -759.0 -670.6
9 0.00 0.35 0.00 0.20 12.10 256.38 22.96 309.84 0.4988 -685.0 -642.2
10 0.00 0.78 0.00 0.44 12.76 252.57 19.15 316.04 0.4629 448.0 396.8
11 0.00 1.13 0.00 0.63 12.50 252.45 19.03 315.82 0.4588 615.0 472.6
12 0.00 1.22 0.00 0.68 12.62 252.30 18.88 316.24 0.4585 842.0 706.6
13 0.00 1.13 0.00 0.62 12.36 249.77 16.36 319.94 0.4293 802.0 627.2
14 0.00 3.05 0.00 1.68 13.59 249.48 16.06 322.27 0.4412 638.0 604.0
15 0.00 0.87 0.00 0.47 11.95 248.64 15.22 321.33 0.4128 818.0 583.0
16 0.00 1.13 0.00 0.61 12.03 248.23 14.82 322.21 0.4099 720.0 652.5
17 0.00 2.09 0.00 1.13 11.18 248.15 14.74 321.02 0.3985 845.0 709.2
18 0.00 2.70 0.00 1.45 11.29 247.66 14.24 322.16 0.3949 918.0 776.8
19 0.00 1.48 0.00 0.79 10.90 247.23 13.81 322.39 0.3858 834.0 592.9
20 0.00 1.31 0.00 0.70 9.89 246.99 13.58 321.19 0.3707 871.0 680.5
21 0.00 1.48 0.00 0.80 11.77 246.86 13.45 324.47 0.3935 1007.0 859.0
22 0.00 0.87 0.00 0.46 10.22 246.60 13.19 322.57 0.3710 855.0 653.6
23 0.00 0.87 0.00 0.47 12.05 245.53 12.12 327.65 0.3853 786.0 631.6
24 0.00 1.05 0.00 0.56 12.58 245.40 11.99 328.67 0.3915 701.0 537.7
25 0.00 2.18 0.00 1.15 9.90 243.43 10.02 329.35 0.3377 715.0 606.6
26 0.00 1.22 0.00 0.65 13.90 241.72 8.31 338.50 0.3842 831.0 632.1
27 0.00 1.74 0.00 0.92 11.36 241.14 7.73 337.24 0.3423 1041.0 882.4
28 0.00 0.78 0.00 0.41 9.31 240.14 6.73 337.59 0.3047 737.0 597.2


  • 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.