| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.20 | 26.45 | 4.92 | 20.78 | 16.42 | 178.12 | -45.57 | 61.95 | 0.7780 | -132.1 | 249.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-27 01:58:58 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 | 1.98 | 0.00 | 1.49 | 15.91 | 180.15 | -43.53 | 61.53 | 0.7559 | 759.0 | 674.4 | |
| 0.00 | 7.84 | 0.00 | 5.94 | 15.75 | 179.81 | -43.88 | 61.90 | 0.7585 | 755.0 | 560.8 | |
| 0.00 | 1.55 | 0.00 | 1.18 | 15.99 | 179.66 | -44.03 | 61.70 | 0.7612 | 553.0 | 407.5 | |
| 0.00 | 1.12 | 0.00 | 0.91 | 19.00 | 177.55 | -46.14 | 59.29 | 0.7953 | -609.0 | -474.6 | |
| 6.20 | 7.32 | 4.92 | 5.81 | 17.30 | 177.99 | -45.69 | 61.01 | 0.7834 | -664.9 | -414.7 | |
| 0.00 | 0.95 | 0.00 | 0.74 | 15.83 | 178.27 | -45.42 | 62.60 | 0.7742 | 668.0 | 611.4 | |
| 0.00 | 1.21 | 0.00 | 0.94 | 15.33 | 177.74 | -45.95 | 63.45 | 0.7771 | 398.0 | 300.3 | |
| 0.00 | 0.86 | 0.00 | 0.71 | 17.02 | 175.90 | -47.79 | 62.37 | 0.8017 | -614.0 | -535.6 | |
| 0.00 | 1.29 | 0.00 | 1.08 | 17.61 | 175.41 | -48.28 | 61.91 | 0.8086 | -431.0 | -356.3 | |
| 0.00 | 0.95 | 0.00 | 0.78 | 16.72 | 175.68 | -48.01 | 62.82 | 0.8025 | -536.0 | -475.0 | |
| 0.00 | 1.38 | 0.00 | 1.20 | 14.16 | 172.30 | -51.39 | 67.20 | 0.8240 | 357.0 | 285.1 | |
| 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. | |