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

8824 110 568 95 500 -12.95 171.80 -55.73 102.88 0.8269


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Mount Wilson 2000-01-11 16:03:00 UT

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spotProj. UProj. WSCorr. UCorr. WSBLLCMPos. angler

1 0 5 0 3 -14.07 187.97 -39.56 106.95 0.6482
2 0 6 0 4 -13.45 181.93 -45.60 104.73 0.7208
3 18 51 13 38 -11.51 179.94 -47.59 101.81 0.7415
4 0 5 0 4 -12.30 178.15 -49.38 102.65 0.7624
5 0 2 0 1 -13.54 177.26 -50.27 104.15 0.7734
6 0 2 0 2 -13.46 176.79 -50.74 104.00 0.7783
7 0 2 0 2 -11.66 177.63 -49.90 101.75 0.7675
8 0 17 0 14 -12.76 175.55 -51.98 102.96 0.7907
9 0 2 0 2 -13.31 174.03 -53.50 103.49 0.8068
10 3 64 2 55 -14.01 173.14 -54.39 104.26 0.8162
11 0 7 0 6 -12.04 174.53 -53.00 101.96 0.8007
12 0 8 0 6 -12.28 173.79 -53.74 102.20 0.8084
13 0 3 0 2 -14.22 172.05 -55.48 104.41 0.8269
14 10 33 8 27 -11.50 173.77 -53.76 101.23 0.8080
15 3 -10 3 -10 -13.03 172.29 -55.24 102.99 0.8237
16 14 264 12 244 -13.93 170.77 -56.76 103.95 0.8387
17 49 -16 45 -16 -13.88 169.99 -57.54 103.82 0.8457
18 0 1 0 1 -10.93 172.38 -55.15 100.44 0.8216
19 0 4 0 4 -10.43 172.63 -54.90 99.85 0.8189
20 -17 -16 -17 -16 -13.45 169.56 -57.97 103.28 0.8493
21 2 21 2 19 -11.79 170.55 -56.98 101.38 0.8394
22 0 6 0 5 -12.96 168.52 -59.01 102.64 0.8583
23 0 20 0 18 -10.70 170.32 -57.21 100.07 0.8412
24 11 42 10 40 -12.10 168.89 -58.64 101.66 0.8547
25 0 3 0 3 -12.07 167.68 -59.85 101.57 0.8652


  • 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