| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 13.55 | 0.00 | 7.08 | -18.30 | 199.56 | -12.31 | 141.21 | 0.3063 | -298.9 | -356.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-18 14:00:34 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 |
| 0.00 | 0.62 | 0.00 | 0.31 | -13.59 | 208.33 | -3.54 | 157.35 | 0.1566 | 699.0 | 553.9 | |
| 0.00 | 1.24 | 0.00 | 0.62 | -13.95 | 208.17 | -3.70 | 157.35 | 0.1634 | 807.0 | 516.6 | |
| 0.00 | 1.33 | 0.00 | 0.67 | -14.22 | 207.63 | -4.24 | 155.19 | 0.1714 | 911.0 | 693.4 | |
| 0.00 | 1.15 | 0.00 | 0.58 | -14.29 | 203.01 | -8.86 | 136.41 | 0.2176 | -768.0 | -618.5 | |
| 0.00 | 1.95 | 0.00 | 0.99 | -16.09 | 202.74 | -9.13 | 140.93 | 0.2431 | -691.0 | -606.6 | |
| 0.00 | 0.97 | 0.00 | 0.50 | -18.42 | 202.04 | -9.83 | 144.57 | 0.2808 | -787.0 | -644.5 | |
| 0.00 | 1.33 | 0.00 | 0.72 | -23.91 | 194.98 | -16.89 | 140.50 | 0.4194 | -806.0 | -669.2 | |
| 0.00 | 1.33 | 0.00 | 0.73 | -23.89 | 194.50 | -17.37 | 139.73 | 0.4241 | -872.0 | -672.1 | |
| 0.00 | 2.66 | 0.00 | 1.43 | -20.35 | 193.94 | -17.93 | 132.37 | 0.3924 | -806.0 | -661.1 | |
| 0.00 | 0.97 | 0.00 | 0.53 | -18.81 | 190.40 | -21.47 | 124.62 | 0.4227 | -676.0 | -531.6 | |
| 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. | |