| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 17.30 | 0.00 | 9.34 | -16.30 | 199.48 | 19.55 | 235.34 | 0.3884 | -323.2 | -258.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-21 00:00:34 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 | 1.95 | 0.00 | 1.12 | -13.58 | 209.27 | 29.34 | 251.66 | 0.5038 | 820.0 | 629.6 | |
| 0.00 | 1.24 | 0.00 | 0.71 | -13.88 | 209.24 | 29.31 | 251.06 | 0.5044 | 722.0 | 591.7 | |
| 0.00 | 0.71 | 0.00 | 0.39 | -14.18 | 204.63 | 24.71 | 247.83 | 0.4394 | -684.0 | -555.9 | |
| 0.00 | 1.06 | 0.00 | 0.59 | -15.98 | 204.00 | 24.07 | 243.49 | 0.4399 | -440.0 | -369.9 | |
| 0.00 | 2.31 | 0.00 | 1.27 | -15.71 | 203.96 | 24.03 | 244.04 | 0.4378 | -602.0 | -489.3 | |
| 0.00 | 1.95 | 0.00 | 1.06 | -15.34 | 201.98 | 22.05 | 243.13 | 0.4076 | -791.0 | -677.5 | |
| 0.00 | 1.15 | 0.00 | 0.61 | -16.71 | 195.81 | 15.88 | 232.14 | 0.3335 | -423.0 | -244.5 | |
| 0.00 | 0.98 | 0.00 | 0.50 | -15.29 | 192.99 | 13.06 | 230.69 | 0.2830 | 671.0 | 498.1 | |
| 0.00 | 1.60 | 0.00 | 0.83 | -18.44 | 192.72 | 12.79 | 222.15 | 0.3144 | -717.0 | -515.7 | |
| 0.00 | 0.98 | 0.00 | 0.51 | -19.29 | 192.00 | 12.07 | 218.72 | 0.3170 | -753.0 | -620.2 | |
| 0.00 | 1.86 | 0.00 | 0.97 | -18.21 | 191.89 | 11.96 | 220.83 | 0.3025 | -785.0 | -621.9 | |
| 0.00 | 1.51 | 0.00 | 0.78 | -19.68 | 188.42 | 8.49 | 208.89 | 0.2891 | -896.0 | -669.8 | |
| 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. | |