| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 44.35 | 268.48 | 37.77 | 228.79 | -21.17 | 16.38 | 48.23 | 238.81 | 0.8151 | 856.1 | 209.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-17 10:00:30 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 |
| 21.39 | 259.92 | 18.36 | 221.85 | -21.22 | 16.77 | 48.61 | 238.94 | 0.8187 | 814.6 | 212.5 | |
| 21.74 | -1.00 | 18.40 | -1.00 | -21.07 | 16.17 | 48.02 | 238.83 | 0.8129 | 1178.5 | 999999 | |
| 0.00 | 0.96 | 0.00 | 0.79 | -21.93 | 14.35 | 46.20 | 236.97 | 0.8008 | 378.0 | 418.1 | |
| 0.00 | 1.22 | 0.00 | 1.03 | -23.24 | 14.83 | 46.68 | 235.75 | 0.8110 | 214.0 | 286.6 | |
| 1.22 | 3.58 | 1.01 | 2.94 | -22.05 | 14.22 | 46.06 | 236.77 | 0.8002 | 548.7 | 445.8 | |
| 0.00 | 1.14 | 0.00 | 0.93 | -22.40 | 13.62 | 45.47 | 236.06 | 0.7967 | -526.0 | -467.2 | |
| 0.00 | 0.87 | 0.00 | 0.66 | -19.71 | 10.83 | 42.67 | 237.64 | 0.7577 | -345.0 | -445.5 | |
| 0.00 | 0.79 | 0.00 | 0.59 | -21.49 | 9.79 | 41.64 | 234.96 | 0.7574 | -298.0 | -268.8 | |
| 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. | |