| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 27.02 | 163.18 | 24.58 | 148.98 | 13.33 | 291.75 | -57.69 | 78.68 | 0.8408 | -557.5 | -165.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-27 05:59:08 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 |
| 20.55 | 156.62 | 18.59 | 142.65 | 13.45 | 292.00 | -57.44 | 78.54 | 0.8385 | -799.5 | -180.3 | |
| 0.00 | 1.44 | 0.00 | 1.31 | 12.36 | 291.64 | -57.81 | 79.84 | 0.8419 | -591.0 | -463.2 | |
| 1.80 | -1.00 | 1.65 | -1.00 | 13.04 | 291.33 | -58.11 | 79.03 | 0.8447 | -510.2 | 999999 | |
| 1.88 | -1.00 | 1.74 | -1.00 | 13.30 | 291.17 | -58.27 | 78.72 | 0.8461 | -296.1 | 999999 | |
| 1.71 | -1.00 | 1.57 | -1.00 | 12.79 | 291.31 | -58.14 | 79.32 | 0.8449 | -447.9 | 999999 | |
| 1.08 | 2.42 | 1.03 | 2.32 | 12.80 | 289.91 | -59.53 | 79.30 | 0.8574 | 546.9 | 552.1 | |
| 0.00 | 0.90 | 0.00 | 0.88 | 12.88 | 289.19 | -60.25 | 79.20 | 0.8636 | 398.0 | 304.0 | |
| 0.00 | 1.26 | 0.00 | 1.27 | 12.42 | 288.09 | -61.35 | 79.71 | 0.8730 | 372.0 | 332.9 | |
| 0.00 | 0.54 | 0.00 | 0.55 | 12.35 | 287.46 | -61.98 | 79.77 | 0.8782 | 248.0 | 259.5 | |
| 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. | |