| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 17.49 | 84.25 | 15.63 | 74.90 | 23.04 | 153.59 | 55.79 | 293.73 | 0.8334 | -546.4 | -327.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-12 13:59:02 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 |
| 1.57 | 78.12 | 1.42 | 69.64 | 22.74 | 154.05 | 56.25 | 293.30 | 0.8371 | -393.3 | -379.5 | |
| 0.00 | 0.79 | 0.00 | 0.69 | 21.32 | 153.20 | 55.40 | 291.73 | 0.8277 | 346.0 | 233.9 | |
| 1.05 | 3.24 | 0.92 | 2.83 | 21.18 | 153.01 | 55.21 | 291.59 | 0.8257 | 508.1 | 408.3 | |
| 14.87 | -1.00 | 13.29 | -1.00 | 23.15 | 153.67 | 55.87 | 293.85 | 0.8343 | -848.9 | 999999 | |
| 0.00 | 1.40 | 0.00 | 1.18 | 22.92 | 151.16 | 53.36 | 294.01 | 0.8112 | 496.0 | 289.9 | |
| 0.00 | 0.70 | 0.00 | 0.56 | 25.86 | 147.64 | 49.84 | 298.44 | 0.7844 | 352.0 | 280.8 | |
| 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. | |