| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 37.86 | 198.85 | 21.94 | 115.22 | -8.37 | 73.17 | 29.14 | 248.19 | 0.5210 | 1002.8 | 412.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-12 22:58:58 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 | 1.38 | 0.00 | 0.82 | -12.24 | 74.15 | 30.13 | 242.24 | 0.5565 | -637.0 | -459.3 | |
| 0.00 | 1.72 | 0.00 | 1.01 | -10.30 | 73.65 | 29.63 | 245.12 | 0.5383 | 643.0 | 592.2 | |
| 37.86 | 194.37 | 21.94 | 112.61 | -8.34 | 73.16 | 29.13 | 248.23 | 0.5208 | 1165.8 | 426.3 | |
| 0.00 | 1.38 | 0.00 | 0.78 | -5.82 | 72.30 | 28.28 | 252.41 | 0.4964 | -572.0 | -467.3 | |
| 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. | |