| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.98 | 21.05 | 3.16 | 13.44 | -15.31 | 3.55 | -33.22 | 123.05 | 0.6325 | 104.3 | 252.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-17 04:59:02 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 |
| 1.40 | 4.72 | 0.87 | 2.95 | -15.15 | 5.07 | -31.71 | 124.00 | 0.6142 | 760.9 | 662.6 | |
| 2.18 | 6.37 | 1.38 | 4.04 | -15.23 | 4.17 | -32.60 | 123.39 | 0.6249 | 902.2 | 620.9 | |
| 0.00 | 1.57 | 0.00 | 1.00 | -15.40 | 4.03 | -32.74 | 123.51 | 0.6277 | 528.0 | 513.8 | |
| 0.00 | 1.57 | 0.00 | 1.00 | -15.56 | 4.00 | -32.77 | 123.71 | 0.6291 | 618.0 | 382.1 | |
| 0.00 | 0.96 | 0.00 | 0.62 | -15.98 | 2.73 | -34.04 | 123.31 | 0.6463 | 245.0 | 238.9 | |
| 0.00 | 1.40 | 0.00 | 0.91 | -15.66 | 2.23 | -34.54 | 122.51 | 0.6498 | -286.0 | -347.5 | |
| 0.00 | 1.75 | 0.00 | 1.14 | -15.44 | 1.70 | -35.07 | 121.83 | 0.6542 | -829.0 | -620.9 | |
| 1.40 | 1.92 | 0.91 | 1.26 | -15.05 | 1.32 | -35.45 | 121.03 | 0.6560 | -801.2 | -625.8 | |
| 0.00 | 0.79 | 0.00 | 0.52 | -15.22 | 1.10 | -35.67 | 121.11 | 0.6596 | -499.0 | -458.7 | |
| 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. | |