| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.51 | 20.59 | 5.10 | 19.09 | -13.89 | 60.69 | 56.78 | 254.00 | 0.8464 | -295.1 | -250.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-31 13:00:39 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 |
| 0.63 | 1.72 | 0.68 | 1.84 | -12.60 | 65.82 | 61.91 | 256.15 | 0.8886 | 397.3 | 311.0 | |
| 0.00 | 1.08 | 0.00 | 1.13 | -18.72 | 63.92 | 60.02 | 249.01 | 0.8806 | 466.0 | 374.3 | |
| 0.00 | 1.35 | 0.00 | 1.39 | -18.88 | 63.44 | 59.54 | 248.74 | 0.8771 | 532.0 | 412.5 | |
| 4.88 | 8.22 | 4.42 | 7.45 | -13.32 | 59.98 | 56.08 | 254.55 | 0.8399 | -543.1 | -405.8 | |
| 0.00 | 0.99 | 0.00 | 0.88 | -12.70 | 59.33 | 55.42 | 255.18 | 0.8330 | -546.0 | -455.9 | |
| 0.00 | 1.26 | 0.00 | 1.14 | -14.04 | 59.57 | 55.67 | 253.62 | 0.8371 | -455.0 | -353.7 | |
| 0.00 | 1.45 | 0.00 | 1.28 | -13.10 | 59.07 | 55.17 | 254.65 | 0.8312 | -540.0 | -508.6 | |
| 0.00 | 4.52 | 0.00 | 3.98 | -12.89 | 58.89 | 54.99 | 254.88 | 0.8292 | -602.0 | -545.6 | |
| 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. | |