| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.89 | 0.00 | 3.83 | -15.63 | 304.19 | 24.65 | 244.28 | 0.4433 | 34.2 | 67.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-13 11:00:33 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 | 0.71 | 0.00 | 0.43 | -9.35 | 314.27 | 34.73 | 261.83 | 0.5700 | 675.0 | 582.9 | |
| 0.00 | 1.41 | 0.00 | 0.81 | -15.88 | 309.01 | 29.47 | 248.26 | 0.5115 | 559.0 | 502.7 | |
| 0.00 | 1.86 | 0.00 | 1.07 | -18.53 | 308.35 | 28.81 | 242.95 | 0.5150 | 613.0 | 530.4 | |
| 0.00 | 0.97 | 0.00 | 0.51 | -16.78 | 296.15 | 16.61 | 234.43 | 0.3379 | -799.0 | -586.6 | |
| 0.00 | 1.94 | 0.00 | 1.01 | -14.45 | 295.67 | 16.13 | 240.00 | 0.3120 | -877.0 | -657.5 | |
| 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. | |