| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 13.32 | 0.00 | 7.43 | 25.80 | 328.42 | -18.89 | 39.27 | 0.4584 | -21.1 | -105.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-20 22:59:01 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 | 2.26 | 0.00 | 1.21 | 22.64 | 332.56 | -14.75 | 38.22 | 0.3814 | -892.0 | -817.1 | |
| 0.00 | 2.18 | 0.00 | 1.18 | 24.96 | 332.05 | -15.26 | 35.31 | 0.4146 | -783.0 | -670.4 | |
| 0.00 | 0.96 | 0.00 | 0.52 | 24.14 | 330.72 | -16.59 | 38.81 | 0.4175 | -765.0 | -643.4 | |
| 0.00 | 1.74 | 0.00 | 0.94 | 23.00 | 330.63 | -16.68 | 40.88 | 0.4053 | -716.0 | -642.8 | |
| 0.00 | 1.65 | 0.00 | 0.95 | 28.65 | 326.18 | -21.13 | 38.37 | 0.5116 | 817.0 | 621.2 | |
| 0.00 | 1.48 | 0.00 | 0.86 | 28.53 | 325.44 | -21.87 | 39.43 | 0.5173 | 473.0 | 439.9 | |
| 0.00 | 1.48 | 0.00 | 0.86 | 28.39 | 325.18 | -22.13 | 39.93 | 0.5184 | 658.0 | 517.0 | |
| 0.00 | 0.35 | 0.00 | 0.20 | 28.23 | 325.03 | -22.28 | 40.34 | 0.5181 | 300.0 | 498.5 | |
| 0.00 | 1.22 | 0.00 | 0.71 | 26.61 | 322.24 | -25.07 | 45.77 | 0.5308 | 718.0 | 605.3 | |
| 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. | |