| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 39.06 | 235.19 | 64.85 | 385.56 | -17.69 | 106.45 | 68.91 | 248.87 | 0.9520 | -22.8 | -108.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-18 15:00:38 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 |
| 21.69 | 118.27 | 42.20 | 232.23 | -17.26 | 109.74 | 72.20 | 250.10 | 0.9681 | 278.5 | -11.4 | |
| 0.00 | 0.27 | 0.00 | 0.47 | -16.22 | 108.28 | 70.75 | 250.86 | 0.9608 | 446.0 | 414.0 | |
| 0.00 | 1.17 | 0.00 | 2.06 | -17.04 | 108.12 | 70.58 | 249.98 | 0.9609 | 462.0 | 445.8 | |
| 0.00 | 1.26 | 0.00 | 2.10 | -16.57 | 107.16 | 69.62 | 250.25 | 0.9560 | 235.0 | 246.9 | |
| 10.44 | 110.35 | 13.56 | 143.46 | -18.12 | 101.22 | 63.68 | 247.18 | 0.9259 | -683.1 | -279.0 | |
| 6.93 | -5.00 | 9.09 | -5.00 | -18.68 | 101.31 | 63.78 | 246.61 | 0.9275 | -528.5 | 999999 | |
| 0.00 | 0.90 | 0.00 | 1.20 | -19.15 | 101.64 | 64.11 | 246.22 | 0.9302 | -153.0 | -100.9 | |
| 0.00 | 2.97 | 0.00 | 4.04 | -19.74 | 101.93 | 64.39 | 245.68 | 0.9329 | -273.0 | -144.8 | |
| 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. | |