| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 4.29 | 12.37 | 6.27 | 18.53 | -24.87 | 167.80 | 71.77 | 245.91 | 0.9448 | 238.8 | 70.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 02:00:32 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 |
| 0.70 | 3.60 | 1.21 | 6.18 | -24.82 | 170.62 | 74.60 | 246.02 | 0.9590 | 60.4 | -91.2 | |
| 0.00 | 0.53 | 0.00 | 0.84 | -24.66 | 169.05 | 73.02 | 246.17 | 0.9516 | -66.0 | -106.5 | |
| 0.70 | 4.91 | 0.95 | 6.69 | -23.92 | 165.56 | 69.54 | 246.86 | 0.9329 | 237.6 | 161.6 | |
| 0.96 | -3.00 | 1.32 | -3.00 | -24.10 | 165.69 | 69.66 | 246.67 | 0.9337 | 291.5 | 999999 | |
| 1.93 | 3.33 | 2.79 | 4.82 | -26.13 | 166.97 | 70.94 | 244.56 | 0.9412 | 401.0 | 342.2 | |
| 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. | |