| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.36 | 26.17 | 4.95 | 23.73 | -17.17 | 123.36 | 56.44 | 251.94 | 0.8387 | -156.1 | -138.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-04 12:59:07 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 |
| 1.34 | 4.38 | 1.40 | 4.56 | -16.75 | 128.54 | 61.62 | 253.04 | 0.8827 | 288.3 | 390.4 | |
| 0.00 | 0.54 | 0.00 | 0.49 | -17.47 | 123.56 | 56.65 | 251.65 | 0.8416 | 258.0 | 322.5 | |
| 0.00 | 1.79 | 0.00 | 1.61 | -18.28 | 123.04 | 56.12 | 250.61 | 0.8378 | 576.0 | 441.1 | |
| 4.02 | 6.61 | 3.55 | 5.83 | -16.94 | 122.29 | 55.38 | 252.10 | 0.8294 | -388.1 | -268.2 | |
| 0.00 | 1.96 | 0.00 | 1.77 | -18.54 | 122.88 | 55.96 | 250.27 | 0.8368 | 330.0 | 365.7 | |
| 0.00 | 0.71 | 0.00 | 0.63 | -16.79 | 122.06 | 55.14 | 252.24 | 0.8271 | -593.0 | -482.4 | |
| 0.00 | 7.68 | 0.00 | 6.68 | -17.10 | 121.70 | 54.78 | 251.82 | 0.8240 | -527.0 | -486.0 | |
| 0.00 | 2.50 | 0.00 | 2.16 | -17.02 | 121.39 | 54.47 | 251.87 | 0.8210 | -779.0 | -551.2 | |
| 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. | |