| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 20.86 | 40.65 | 18.38 | 35.72 | 18.33 | 359.36 | 56.16 | 287.34 | 0.8280 | -421.4 | -294.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 17:59:08 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 |
| 4.57 | 28.92 | 4.05 | 25.73 | 18.01 | 359.74 | 56.54 | 286.93 | 0.8314 | -665.7 | -481.6 | |
| 12.62 | -1.00 | 11.24 | -1.00 | 18.47 | 359.91 | 56.71 | 287.46 | 0.8333 | -709.5 | 999999 | |
| 0.00 | 0.90 | 0.00 | 0.80 | 18.90 | 359.96 | 56.76 | 287.98 | 0.8340 | -363.0 | -301.8 | |
| 0.00 | 0.72 | 0.00 | 0.63 | 19.13 | 359.27 | 56.06 | 288.32 | 0.8278 | -625.0 | -574.6 | |
| 0.00 | 0.72 | 0.00 | 0.63 | 19.31 | 359.07 | 55.87 | 288.55 | 0.8261 | -510.0 | -423.8 | |
| 0.00 | 1.16 | 0.00 | 1.00 | 18.47 | 358.36 | 55.16 | 287.59 | 0.8188 | 456.0 | 377.5 | |
| 0.36 | 1.25 | 0.30 | 1.06 | 17.67 | 357.88 | 54.68 | 286.65 | 0.8136 | 375.2 | 270.9 | |
| 2.15 | 5.46 | 1.81 | 4.58 | 17.67 | 357.55 | 54.35 | 286.68 | 0.8104 | 589.5 | 440.5 | |
| 1.16 | -8.00 | 0.98 | -8.00 | 17.90 | 357.38 | 54.18 | 286.98 | 0.8089 | 507.2 | 999999 | |
| 0.00 | 1.52 | 0.00 | 1.29 | 19.35 | 357.68 | 54.48 | 288.74 | 0.8131 | -612.0 | -459.8 | |
| 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. | |