| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 13.75 | 52.51 | 14.44 | 54.65 | -8.75 | 248.38 | 61.82 | 262.84 | 0.8791 | 376.8 | 62.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 12:00:34 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 |
| 12.51 | 43.19 | 13.39 | 46.48 | -8.76 | 249.42 | 62.86 | 262.80 | 0.8884 | 650.1 | 86.5 | |
| 0.00 | 0.62 | 0.00 | 0.60 | -9.00 | 246.04 | 59.48 | 262.59 | 0.8601 | 281.0 | 298.9 | |
| 0.00 | 0.71 | 0.00 | 0.66 | -10.38 | 244.64 | 58.09 | 260.97 | 0.8476 | -566.0 | -516.0 | |
| 0.00 | 0.71 | 0.00 | 0.65 | -10.10 | 244.33 | 57.78 | 261.30 | 0.8447 | -446.0 | -395.4 | |
| 0.00 | 0.98 | 0.00 | 0.89 | -9.81 | 244.08 | 57.52 | 261.64 | 0.8423 | -150.0 | -164.6 | |
| 0.00 | 1.33 | 0.00 | 1.18 | -8.29 | 242.86 | 56.31 | 263.47 | 0.8309 | 538.0 | 441.0 | |
| 0.00 | 1.33 | 0.00 | 1.16 | -8.59 | 242.11 | 55.55 | 263.12 | 0.8235 | 149.0 | 126.9 | |
| 1.24 | 2.84 | 1.05 | 2.40 | -8.58 | 240.93 | 54.38 | 263.13 | 0.8118 | -516.9 | -420.0 | |
| 0.00 | 0.80 | 0.00 | 0.63 | -4.73 | 238.06 | 51.51 | 268.07 | 0.7827 | 109.0 | 174.7 | |
| 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. | |