| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 10.14 | 28.12 | 5.51 | 15.28 | 15.68 | 176.57 | 13.31 | 327.22 | 0.4114 | -367.9 | -178.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-27 05:59:06 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 | 1.07 | 0.00 | 0.59 | 15.57 | 178.91 | 15.65 | 322.74 | 0.4309 | -988.0 | -765.6 | |
| 4.36 | 9.79 | 2.37 | 5.32 | 15.21 | 177.13 | 13.87 | 325.47 | 0.4099 | -963.5 | -676.4 | |
| 3.65 | 6.41 | 1.98 | 3.48 | 15.33 | 176.79 | 13.53 | 326.31 | 0.4084 | -1003.2 | -758.4 | |
| 0.53 | 2.31 | 0.29 | 1.26 | 16.29 | 176.18 | 12.91 | 328.80 | 0.4158 | 843.8 | 622.1 | |
| 0.00 | 2.31 | 0.00 | 1.26 | 16.96 | 176.00 | 12.73 | 330.01 | 0.4235 | -754.0 | -475.5 | |
| 1.60 | 2.94 | 0.87 | 1.59 | 16.15 | 175.81 | 12.55 | 329.34 | 0.4110 | 658.9 | 594.0 | |
| 0.00 | 3.29 | 0.00 | 1.78 | 16.07 | 175.07 | 11.80 | 330.75 | 0.4040 | 851.0 | 789.3 | |
| 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. | |