| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.07 | 13.26 | 3.60 | 9.22 | -17.36 | 122.35 | -43.66 | 110.17 | 0.7039 | -200.4 | 69.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-27 00:59:06 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 | 1.42 | 0.00 | 0.94 | -16.66 | 125.81 | -40.20 | 110.15 | 0.6609 | 805.0 | 667.8 | |
| 0.00 | 0.98 | 0.00 | 0.65 | -17.13 | 124.81 | -41.20 | 110.54 | 0.6745 | 704.0 | 461.1 | |
| 0.00 | 2.14 | 0.00 | 1.45 | -17.10 | 123.67 | -42.34 | 110.16 | 0.6880 | 779.0 | 575.6 | |
| 0.00 | 1.07 | 0.00 | 0.75 | -18.21 | 121.59 | -44.42 | 111.13 | 0.7151 | -578.0 | -510.8 | |
| 0.00 | 1.25 | 0.00 | 0.88 | -16.59 | 121.56 | -44.45 | 108.88 | 0.7117 | -597.0 | -508.0 | |
| 5.07 | 5.96 | 3.60 | 4.23 | -17.65 | 121.14 | -44.87 | 110.25 | 0.7188 | -675.6 | -593.6 | |
| 0.00 | 0.44 | 0.00 | 0.32 | -17.25 | 121.09 | -44.92 | 109.68 | 0.7185 | -605.0 | -534.0 | |
| 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. | |