| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.49 | 0.00 | 6.48 | -18.04 | 324.15 | 23.60 | 232.50 | 0.4820 | -187.8 | -132.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-18 02:58:55 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 | 1.53 | 0.00 | 0.90 | -17.73 | 328.98 | 28.43 | 237.74 | 0.5383 | 436.0 | 362.3 | |
| 0.00 | 0.94 | 0.00 | 0.53 | -17.29 | 326.27 | 25.71 | 236.09 | 0.5012 | 733.0 | 533.9 | |
| 0.00 | 1.11 | 0.00 | 0.63 | -17.33 | 325.69 | 25.14 | 235.48 | 0.4942 | 836.0 | 558.0 | |
| 0.00 | 1.19 | 0.00 | 0.67 | -17.24 | 324.76 | 24.21 | 234.69 | 0.4819 | 835.0 | 659.5 | |
| 0.00 | 1.02 | 0.00 | 0.57 | -15.17 | 323.96 | 23.40 | 237.70 | 0.4554 | -859.0 | -673.3 | |
| 0.00 | 1.53 | 0.00 | 0.85 | -17.85 | 322.49 | 21.93 | 231.07 | 0.4589 | -878.0 | -651.6 | |
| 0.00 | 0.60 | 0.00 | 0.35 | -23.42 | 323.32 | 22.76 | 223.14 | 0.5213 | -775.0 | -647.1 | |
| 0.00 | 1.53 | 0.00 | 0.85 | -18.59 | 322.18 | 21.63 | 229.39 | 0.4621 | -690.0 | -525.0 | |
| 0.00 | 1.19 | 0.00 | 0.66 | -18.65 | 321.76 | 21.20 | 228.75 | 0.4577 | -798.0 | -573.1 | |
| 0.00 | 0.85 | 0.00 | 0.47 | -19.56 | 320.41 | 19.85 | 225.41 | 0.4513 | -718.0 | -585.1 | |
| 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. | |