| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.38 | 19.64 | 0.81 | 11.41 | 16.72 | 179.22 | -20.32 | 39.79 | 0.5210 | 38.3 | 51.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-28 21:58:58 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 | 1.38 | 0.00 | 0.77 | 15.80 | 184.80 | -14.74 | 32.32 | 0.4598 | -795.0 | -680.2 | |
| 0.00 | 1.38 | 0.00 | 0.79 | 16.18 | 180.02 | -19.53 | 39.45 | 0.5072 | 722.0 | 599.6 | |
| 0.00 | 0.86 | 0.00 | 0.51 | 18.48 | 179.66 | -19.88 | 37.11 | 0.5368 | -716.0 | -611.8 | |
| 0.00 | 0.86 | 0.00 | 0.50 | 16.45 | 179.66 | -19.88 | 39.60 | 0.5138 | 702.0 | 561.5 | |
| 0.00 | 2.67 | 0.00 | 1.54 | 16.03 | 179.64 | -19.90 | 40.18 | 0.5092 | 763.0 | 639.1 | |
| 0.00 | 1.98 | 0.00 | 1.14 | 15.61 | 179.65 | -19.89 | 40.72 | 0.5044 | 946.0 | 700.1 | |
| 0.00 | 0.78 | 0.00 | 0.45 | 16.53 | 179.45 | -20.09 | 39.79 | 0.5166 | 561.0 | 494.6 | |
| 0.00 | 0.86 | 0.00 | 0.50 | 16.24 | 179.39 | -20.16 | 40.26 | 0.5140 | 632.0 | 562.2 | |
| 0.00 | 1.90 | 0.00 | 1.08 | 14.86 | 179.30 | -20.24 | 42.24 | 0.4996 | 697.0 | 514.1 | |
| 1.38 | 3.27 | 0.81 | 1.92 | 17.39 | 178.32 | -21.22 | 40.23 | 0.5369 | -933.6 | -850.6 | |
| 0.00 | 1.12 | 0.00 | 0.67 | 18.48 | 177.55 | -22.00 | 39.90 | 0.5560 | -784.0 | -596.2 | |
| 0.00 | 1.12 | 0.00 | 0.67 | 19.04 | 176.82 | -22.72 | 40.12 | 0.5687 | -674.0 | -537.2 | |
| 0.00 | 1.46 | 0.00 | 0.87 | 17.91 | 176.51 | -23.04 | 41.90 | 0.5598 | -807.0 | -577.9 | |
| 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. | |