| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.76 | 60.24 | 9.85 | 60.59 | -8.76 | 248.39 | 60.74 | 262.84 | 0.8702 | 344.9 | 144.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 10:00:34 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 |
| 5.06 | 47.37 | 5.26 | 49.24 | -8.78 | 249.59 | 61.94 | 262.80 | 0.8810 | 655.3 | 184.7 | |
| 2.31 | -1.00 | 2.37 | -1.00 | -8.59 | 249.28 | 61.63 | 263.03 | 0.8784 | 735.7 | 999999 | |
| 1.24 | -1.00 | 1.27 | -1.00 | -8.84 | 249.15 | 61.50 | 262.74 | 0.8774 | 724.0 | 999999 | |
| 0.00 | 1.33 | 0.00 | 1.35 | -8.71 | 248.92 | 61.27 | 262.90 | 0.8755 | 578.0 | 506.5 | |
| 0.00 | 0.98 | 0.00 | 0.97 | -6.67 | 248.12 | 60.47 | 265.26 | 0.8691 | 355.0 | 355.5 | |
| 0.00 | 1.33 | 0.00 | 1.20 | -10.41 | 244.54 | 56.89 | 260.92 | 0.8364 | -480.0 | -443.9 | |
| 0.00 | 1.69 | 0.00 | 1.50 | -10.13 | 244.30 | 56.65 | 261.27 | 0.8341 | -262.0 | -272.5 | |
| 0.00 | 1.15 | 0.00 | 1.00 | -8.48 | 243.13 | 55.48 | 263.26 | 0.8227 | 329.0 | 314.7 | |
| 0.00 | 1.51 | 0.00 | 1.29 | -8.23 | 242.75 | 55.10 | 263.56 | 0.8190 | 529.0 | 441.3 | |
| 0.00 | 1.33 | 0.00 | 1.11 | -9.44 | 241.53 | 53.88 | 262.07 | 0.8068 | -369.0 | -272.1 | |
| 0.00 | 0.98 | 0.00 | 0.81 | -8.55 | 241.29 | 53.64 | 263.18 | 0.8042 | -290.0 | -348.5 | |
| 1.15 | 2.57 | 0.95 | 2.12 | -8.61 | 240.89 | 53.24 | 263.11 | 0.8001 | -361.3 | -442.2 | |
| 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. | |