| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 13.68 | 0.00 | 7.65 | 7.86 | 27.00 | 27.46 | 274.57 | 0.4595 | -265.2 | -261.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-21 12:00:38 UT
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!) |
| spot | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 1.35 | 0.00 | 0.79 | 4.15 | 31.74 | 32.20 | 266.82 | 0.5344 | -643.0 | -593.1 | |
| 0.00 | 1.35 | 0.00 | 0.78 | 6.88 | 30.94 | 31.40 | 271.89 | 0.5196 | -707.0 | -704.1 | |
| 0.00 | 2.25 | 0.00 | 1.30 | 7.06 | 30.45 | 30.91 | 272.22 | 0.5122 | -825.0 | -615.8 | |
| 0.00 | 0.90 | 0.00 | 0.51 | 8.02 | 29.71 | 30.17 | 274.10 | 0.5009 | -746.0 | -659.8 | |
| 0.00 | 2.52 | 0.00 | 1.43 | 8.58 | 29.05 | 29.51 | 275.24 | 0.4911 | -858.0 | -613.4 | |
| 0.00 | 0.90 | 0.00 | 0.51 | 5.10 | 28.25 | 28.71 | 267.99 | 0.4808 | -654.0 | -520.0 | |
| 0.00 | 1.80 | 0.00 | 0.98 | 9.62 | 23.96 | 24.42 | 278.10 | 0.4134 | 744.0 | 535.9 | |
| 0.00 | 1.08 | 0.00 | 0.56 | 9.94 | 18.06 | 18.52 | 280.71 | 0.3197 | 440.0 | 458.9 | |
| 0.00 | 1.53 | 0.00 | 0.79 | 10.54 | 16.57 | 17.03 | 283.42 | 0.2973 | 862.0 | 649.1 | |
| 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. | |