| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 42.16 | 299.06 | 32.18 | 227.86 | 18.14 | 166.09 | 44.49 | 298.80 | 0.7623 | -823.3 | -263.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-25 10:00:35 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 |
| 42.16 | 290.34 | 32.18 | 221.50 | 18.12 | 166.18 | 44.58 | 298.73 | 0.7630 | -1064.7 | -286.4 | |
| 0.00 | 0.62 | 0.00 | 0.45 | 17.33 | 163.75 | 42.15 | 299.00 | 0.7347 | 404.0 | 340.7 | |
| 0.00 | 3.65 | 0.00 | 2.69 | 19.31 | 163.66 | 42.06 | 301.49 | 0.7437 | 297.0 | 366.4 | |
| 0.00 | 1.78 | 0.00 | 1.29 | 17.91 | 163.06 | 41.46 | 300.09 | 0.7305 | 456.0 | 438.1 | |
| 0.00 | 0.80 | 0.00 | 0.58 | 17.99 | 162.83 | 41.23 | 300.32 | 0.7286 | 555.0 | 532.7 | |
| 0.00 | 0.62 | 0.00 | 0.45 | 19.07 | 162.22 | 40.62 | 302.01 | 0.7279 | 598.0 | 500.0 | |
| 0.00 | 1.25 | 0.00 | 0.90 | 20.27 | 161.96 | 40.36 | 303.64 | 0.7319 | 519.0 | 423.9 | |
| 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. | |