| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 32.25 | 193.17 | 27.42 | 164.78 | -7.16 | 139.45 | -52.72 | 103.84 | 0.8152 | 772.9 | 208.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-08-17 07:59:08 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 |
| 0.00 | 1.08 | 0.00 | 0.92 | -9.81 | 140.11 | -52.06 | 107.19 | 0.8156 | 343.0 | 303.0 | |
| 31.35 | 190.29 | 26.65 | 162.09 | -7.05 | 139.49 | -52.68 | 103.72 | 0.8146 | 893.2 | 215.1 | |
| 0.90 | -2.00 | 0.77 | -2.00 | -7.57 | 139.30 | -52.87 | 104.28 | 0.8177 | 249.5 | 999999 | |
| 0.00 | 0.99 | 0.00 | 0.97 | -14.67 | 136.01 | -56.16 | 111.39 | 0.8650 | -516.0 | -412.1 | |
| 0.00 | 0.81 | 0.00 | 0.80 | -14.59 | 135.82 | -56.35 | 111.24 | 0.8663 | -312.0 | -303.6 | |
| 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. | |