| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 15.18 | 0.00 | 8.19 | -15.83 | 201.24 | 19.65 | 235.90 | 0.3928 | -207.3 | -156.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 21:00:34 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 | 2.13 | 0.00 | 1.20 | -13.47 | 209.25 | 27.66 | 251.09 | 0.4792 | 874.0 | 705.5 | |
| 0.00 | 0.98 | 0.00 | 0.55 | -13.81 | 209.12 | 27.53 | 250.33 | 0.4786 | 654.0 | 627.5 | |
| 0.00 | 0.98 | 0.00 | 0.54 | -12.59 | 207.62 | 26.03 | 252.11 | 0.4520 | -504.0 | -370.6 | |
| 0.00 | 2.39 | 0.00 | 1.32 | -11.89 | 207.51 | 25.92 | 253.56 | 0.4479 | -680.0 | -529.2 | |
| 0.00 | 0.89 | 0.00 | 0.49 | -15.63 | 207.16 | 25.57 | 245.40 | 0.4590 | 581.0 | 470.8 | |
| 0.00 | 1.42 | 0.00 | 0.77 | -15.65 | 203.91 | 22.32 | 242.71 | 0.4132 | -791.0 | -621.9 | |
| 0.00 | 1.24 | 0.00 | 0.67 | -24.20 | 194.11 | 12.53 | 211.08 | 0.3849 | -600.0 | -496.9 | |
| 0.00 | 0.89 | 0.00 | 0.46 | -18.93 | 193.57 | 11.98 | 219.30 | 0.3114 | -734.0 | -537.0 | |
| 0.00 | 1.42 | 0.00 | 0.73 | -15.33 | 192.86 | 11.27 | 226.58 | 0.2607 | 721.0 | 531.1 | |
| 0.00 | 1.42 | 0.00 | 0.73 | -18.06 | 191.86 | 10.27 | 217.05 | 0.2827 | -861.0 | -748.4 | |
| 0.00 | 1.42 | 0.00 | 0.73 | -19.71 | 188.44 | 6.85 | 204.02 | 0.2770 | -940.0 | -799.6 | |
| 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. | |