| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.73 | 36.76 | 11.36 | 62.36 | 7.80 | 347.85 | -73.72 | 83.91 | 0.9548 | -392.9 | -185.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-21 18:59:09 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 |
| 6.92 | 28.94 | 10.14 | 42.34 | 7.44 | 350.71 | -70.85 | 84.54 | 0.9424 | -578.2 | -273.2 | |
| 0.81 | -1.00 | 1.22 | -1.00 | 7.38 | 350.16 | -71.41 | 84.56 | 0.9456 | 86.1 | 999999 | |
| 0.00 | 2.07 | 0.00 | 3.44 | 7.68 | 348.18 | -73.38 | 84.08 | 0.9560 | -347.0 | -200.5 | |
| 0.00 | 0.90 | 0.00 | 1.87 | 7.09 | 344.71 | -76.85 | 84.36 | 0.9721 | 192.0 | 182.2 | |
| 0.00 | 4.13 | 0.00 | 12.54 | 9.01 | 340.08 | -81.48 | 81.96 | 0.9872 | -48.0 | -48.9 | |
| 0.00 | 0.72 | 0.00 | 2.17 | 8.74 | 340.15 | -81.41 | 82.24 | 0.9871 | -74.0 | -11.6 | |
| 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. | |