| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 57.78 | 352.10 | 36.32 | 221.55 | 31.21 | 186.65 | 15.77 | 337.82 | 0.6182 | -1082.9 | -344.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-07 09:58:55 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 | 1.27 | 0.00 | 0.85 | 35.38 | 187.96 | 17.08 | 339.13 | 0.6747 | 808.0 | 677.7 | |
| 0.00 | 0.42 | 0.00 | 0.28 | 33.82 | 187.48 | 16.60 | 338.64 | 0.6542 | 670.0 | 541.6 | |
| 57.78 | 348.37 | 36.32 | 219.13 | 31.18 | 186.66 | 15.78 | 337.79 | 0.6179 | -1214.9 | -350.2 | |
| 0.00 | 1.02 | 0.00 | 0.64 | 31.51 | 185.10 | 14.23 | 339.98 | 0.6144 | -450.0 | -349.2 | |
| 0.00 | 1.02 | 0.00 | 0.65 | 33.16 | 183.24 | 12.36 | 343.34 | 0.6274 | -562.0 | -460.2 | |
| 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. | |