| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 30.31 | 191.52 | 21.56 | 136.80 | 13.36 | 291.46 | -46.42 | 78.27 | 0.7220 | -549.2 | -249.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-28 02:59:08 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 |
| 20.54 | 178.95 | 14.55 | 127.38 | 13.44 | 291.86 | -46.02 | 78.14 | 0.7174 | -1093.1 | -309.9 | |
| 1.79 | -1.00 | 1.28 | -1.00 | 13.15 | 291.66 | -46.21 | 78.56 | 0.7195 | -642.5 | 999999 | |
| 2.42 | -1.00 | 1.74 | -1.00 | 13.51 | 291.21 | -46.67 | 78.10 | 0.7251 | -521.2 | 999999 | |
| 0.00 | 1.26 | 0.00 | 0.90 | 12.71 | 291.27 | -46.61 | 79.19 | 0.7239 | -451.0 | -396.3 | |
| 2.87 | -1.00 | 2.06 | -1.00 | 13.28 | 291.08 | -46.79 | 78.42 | 0.7264 | -585.6 | 999999 | |
| 2.69 | -1.00 | 1.93 | -1.00 | 13.04 | 291.10 | -46.78 | 78.75 | 0.7261 | -485.5 | 999999 | |
| 0.00 | 0.90 | 0.00 | 0.66 | 12.19 | 289.88 | -48.00 | 79.97 | 0.7399 | 606.0 | 560.7 | |
| 0.00 | 2.60 | 0.00 | 1.92 | 12.22 | 289.59 | -48.29 | 79.93 | 0.7432 | 656.0 | 572.8 | |
| 0.00 | 1.52 | 0.00 | 1.15 | 13.64 | 288.55 | -49.32 | 78.09 | 0.7555 | 548.0 | 482.7 | |
| 0.00 | 3.14 | 0.00 | 2.36 | 13.40 | 288.62 | -49.25 | 78.40 | 0.7546 | 619.0 | 563.5 | |
| 0.00 | 1.08 | 0.00 | 0.82 | 13.42 | 287.84 | -50.03 | 78.42 | 0.7633 | 534.0 | 454.9 | |
| 0.00 | 0.90 | 0.00 | 0.70 | 14.06 | 287.11 | -50.76 | 77.61 | 0.7715 | 519.0 | 458.0 | |
| 0.00 | 1.17 | 0.00 | 0.91 | 14.24 | 286.75 | -51.12 | 77.40 | 0.7754 | 511.0 | 434.5 | |
| 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. | |