| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 57.73 | 358.33 | 33.94 | 210.70 | 12.76 | 13.36 | 26.73 | 305.46 | 0.5406 | -1175.8 | -421.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-08 09:00:33 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 |
| 55.70 | 346.86 | 32.76 | 204.09 | 12.75 | 13.44 | 26.81 | 305.35 | 0.5414 | -1395.7 | -435.4 | |
| 0.00 | 1.41 | 0.00 | 0.82 | 10.62 | 12.94 | 26.31 | 302.44 | 0.5182 | 466.0 | 434.7 | |
| 0.00 | 1.15 | 0.00 | 0.66 | 12.49 | 11.16 | 24.52 | 307.36 | 0.5119 | -896.0 | -751.1 | |
| 0.00 | 1.06 | 0.00 | 0.61 | 13.63 | 11.08 | 24.44 | 309.22 | 0.5211 | -700.0 | -639.1 | |
| 1.50 | 3.53 | 0.88 | 2.06 | 15.03 | 10.90 | 24.27 | 311.51 | 0.5322 | -788.0 | -564.3 | |
| 0.53 | 2.29 | 0.30 | 1.31 | 12.55 | 10.32 | 23.68 | 308.41 | 0.5025 | 743.7 | 564.5 | |
| 0.00 | 2.03 | 0.00 | 1.15 | 12.67 | 9.50 | 22.86 | 309.60 | 0.4939 | 797.0 | 618.7 | |
| 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. | |