| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.30 | 24.31 | 6.39 | 36.93 | -16.91 | 206.17 | -67.46 | 110.71 | 0.9461 | 383.2 | 38.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-28 00:00:37 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 | 1.26 | 0.00 | 1.98 | -19.01 | 205.91 | -67.72 | 112.79 | 0.9504 | 207.0 | 194.2 | |
| 2.78 | 4.84 | 4.06 | 7.07 | -17.21 | 207.00 | -66.63 | 111.23 | 0.9421 | 465.7 | 288.3 | |
| 1.52 | 15.15 | 2.33 | 23.33 | -16.85 | 205.95 | -67.68 | 110.59 | 0.9472 | 437.4 | -58.9 | |
| 0.00 | 0.99 | 0.00 | 1.41 | -15.28 | 206.96 | -66.67 | 109.22 | 0.9396 | 484.0 | 373.6 | |
| 0.00 | 1.35 | 0.00 | 2.09 | -16.68 | 205.48 | -68.15 | 110.30 | 0.9494 | 257.0 | 274.9 | |
| 0.00 | 0.72 | 0.00 | 1.05 | -15.03 | 206.31 | -67.32 | 108.81 | 0.9428 | 124.0 | 67.4 | |
| 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. | |