| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 21.77 | 146.33 | 17.68 | 119.24 | 19.06 | 104.97 | -50.27 | 66.41 | 0.7955 | -723.3 | -240.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-01 19:58:56 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 | 1.28 | 0.00 | 1.07 | 23.52 | 105.16 | -50.08 | 60.97 | 0.8065 | -570.0 | -541.3 | |
| 0.00 | 1.02 | 0.00 | 0.92 | 26.72 | 102.80 | -52.43 | 58.05 | 0.8366 | -333.0 | -333.5 | |
| 0.00 | 1.28 | 0.00 | 0.98 | 14.97 | 106.86 | -48.38 | 71.00 | 0.7661 | -397.0 | -318.2 | |
| 21.77 | 139.00 | 17.68 | 113.07 | 18.93 | 105.02 | -50.22 | 66.55 | 0.7947 | -979.9 | -248.2 | |
| 0.00 | 1.02 | 0.00 | 0.87 | 21.08 | 103.70 | -51.54 | 64.34 | 0.8128 | -654.0 | -591.0 | |
| 0.00 | 1.02 | 0.00 | 0.88 | 22.09 | 103.09 | -52.15 | 63.33 | 0.8211 | 661.0 | 507.5 | |
| 0.00 | 0.77 | 0.00 | 0.65 | 20.79 | 103.33 | -51.91 | 64.79 | 0.8155 | 345.0 | 331.7 | |
| 0.00 | 0.94 | 0.00 | 0.80 | 20.88 | 103.08 | -52.16 | 64.75 | 0.8180 | 421.0 | 355.3 | |
| 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. | |