| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 9.21 | 34.39 | 12.16 | 43.68 | 21.65 | 131.74 | 64.70 | 294.02 | 0.9209 | -226.0 | 54.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-31 17:59:10 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 | 4.24 | 0.00 | 5.35 | 20.72 | 131.83 | 64.80 | 293.00 | 0.9210 | -355.0 | -255.7 | |
| 7.40 | 18.87 | 9.86 | 25.35 | 22.19 | 133.02 | 65.98 | 294.34 | 0.9299 | -454.0 | 132.0 | |
| 0.00 | 0.99 | 0.00 | 1.24 | 21.05 | 131.48 | 64.44 | 293.40 | 0.9191 | -219.0 | -260.8 | |
| 1.81 | 3.70 | 2.30 | 4.70 | 21.64 | 131.90 | 64.86 | 293.96 | 0.9225 | -269.0 | -271.0 | |
| 0.00 | 0.72 | 0.00 | 0.75 | 16.60 | 126.98 | 59.94 | 289.40 | 0.8813 | -413.0 | -316.6 | |
| 0.00 | 1.44 | 0.00 | 1.56 | 20.15 | 127.50 | 60.46 | 293.23 | 0.8907 | 309.0 | 218.4 | |
| 0.00 | 1.81 | 0.00 | 1.89 | 20.23 | 126.38 | 59.34 | 293.57 | 0.8825 | 540.0 | 440.7 | |
| 0.00 | 1.63 | 0.00 | 1.76 | 21.84 | 127.12 | 60.09 | 295.18 | 0.8908 | 544.0 | 423.7 | |
| 0.00 | 0.99 | 0.00 | 1.08 | 22.34 | 127.14 | 60.11 | 295.71 | 0.8919 | 359.0 | 313.0 | |
| 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. | |