| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.57 | 29.61 | 3.57 | 16.16 | -17.94 | 114.08 | 0.21 | 180.42 | 0.4204 | -260.6 | -300.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-17 19:59:09 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 |
| 2.16 | 5.94 | 1.18 | 3.26 | -18.40 | 116.92 | 3.05 | 186.77 | 0.4295 | 1055.2 | 827.8 | |
| 0.00 | 2.43 | 0.00 | 1.33 | -18.52 | 115.55 | 1.67 | 183.71 | 0.4295 | 560.0 | 454.1 | |
| 0.00 | 0.90 | 0.00 | 0.49 | -17.52 | 114.33 | 0.45 | 181.05 | 0.4128 | -828.0 | -614.3 | |
| 0.00 | 0.90 | 0.00 | 0.49 | -17.68 | 113.95 | 0.07 | 180.17 | 0.4153 | -852.0 | -694.7 | |
| 0.00 | 1.26 | 0.00 | 0.69 | -17.78 | 113.79 | -0.09 | 179.80 | 0.4169 | -994.0 | -808.7 | |
| 1.53 | 10.44 | 0.83 | 5.70 | -17.95 | 113.47 | -0.41 | 179.08 | 0.4197 | -1135.4 | -755.9 | |
| 2.88 | 3.51 | 1.56 | 1.90 | -17.02 | 112.96 | -0.91 | 177.84 | 0.4050 | 937.2 | 830.6 | |
| 0.00 | 1.62 | 0.00 | 0.89 | -18.93 | 112.76 | -1.11 | 177.57 | 0.4354 | -741.0 | -615.5 | |
| 0.00 | 1.35 | 0.00 | 0.73 | -17.53 | 111.11 | -2.76 | 173.62 | 0.4153 | -840.0 | -666.9 | |
| 0.00 | 1.26 | 0.00 | 0.68 | -16.93 | 111.03 | -2.85 | 173.25 | 0.4059 | -824.0 | -686.2 | |
| 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. | |