| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.73 | 0.00 | 4.45 | -15.99 | 202.76 | 28.87 | 245.40 | 0.5114 | -369.5 | -243.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-21 11:00:35 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 | 1.07 | 0.00 | 0.65 | -13.51 | 209.57 | 35.68 | 253.99 | 0.5922 | 526.0 | 516.5 | |
| 0.00 | 1.07 | 0.00 | 0.65 | -13.91 | 209.49 | 35.59 | 253.29 | 0.5921 | 671.0 | 592.5 | |
| 0.00 | 1.33 | 0.00 | 0.77 | -15.69 | 204.21 | 30.31 | 248.06 | 0.5259 | -786.0 | -627.9 | |
| 0.00 | 0.71 | 0.00 | 0.41 | -15.99 | 203.46 | 29.57 | 247.09 | 0.5170 | -601.0 | -517.4 | |
| 0.00 | 1.15 | 0.00 | 0.66 | -15.57 | 203.28 | 29.39 | 247.78 | 0.5127 | -728.0 | -561.8 | |
| 0.00 | 0.53 | 0.00 | 0.30 | -14.71 | 201.91 | 28.02 | 248.69 | 0.4897 | -529.0 | -490.7 | |
| 0.00 | 1.07 | 0.00 | 0.57 | -18.06 | 192.70 | 18.80 | 233.22 | 0.3842 | -756.0 | -580.7 | |
| 0.00 | 0.80 | 0.00 | 0.44 | -22.10 | 192.41 | 18.52 | 224.74 | 0.4198 | -753.0 | -595.9 | |
| 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. | |