| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.56 | 23.17 | 4.47 | 13.89 | 18.82 | 0.58 | -32.90 | 66.35 | 0.5618 | -641.4 | -625.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 21:59:09 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 | 1.17 | 0.00 | 0.69 | 20.76 | 1.89 | -31.58 | 62.50 | 0.5542 | -609.0 | -555.4 | |
| 1.44 | 3.50 | 0.84 | 2.06 | 18.88 | 2.27 | -31.20 | 65.57 | 0.5405 | -794.9 | -724.3 | |
| 1.80 | 3.95 | 1.06 | 2.32 | 18.59 | 2.22 | -31.26 | 66.10 | 0.5400 | -902.3 | -780.0 | |
| 1.80 | 8.08 | 1.07 | 4.80 | 18.60 | 1.24 | -32.24 | 66.58 | 0.5531 | -786.1 | -786.0 | |
| 0.81 | -4.00 | 0.48 | -4.00 | 18.44 | 1.27 | -32.20 | 66.83 | 0.5520 | -1046.1 | 999999 | |
| 1.71 | 3.14 | 1.02 | 1.89 | 18.97 | 0.32 | -33.16 | 66.36 | 0.5667 | -738.8 | -696.8 | |
| 0.00 | 1.71 | 0.00 | 1.03 | 19.34 | 0.23 | -33.24 | 65.77 | 0.5693 | -789.0 | -579.1 | |
| 0.00 | 0.81 | 0.00 | 0.48 | 18.09 | 0.13 | -33.35 | 67.96 | 0.5659 | -629.0 | -479.7 | |
| 0.00 | 0.81 | 0.00 | 0.62 | 18.82 | 343.86 | -49.62 | 71.19 | 0.7640 | 720.0 | 566.4 | |
| 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. | |