| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 30.33 | 181.03 | 33.88 | 202.46 | 18.29 | 165.94 | 60.30 | 293.03 | 0.8981 | -814.8 | -172.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-26 15:00:35 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 |
| 22.15 | 179.61 | 24.73 | 200.96 | 18.15 | 165.99 | 60.35 | 292.87 | 0.8981 | -858.9 | -175.9 | |
| 8.18 | -1.00 | 9.15 | -1.00 | 18.63 | 165.88 | 60.24 | 293.42 | 0.8983 | -814.2 | 999999 | |
| 0.00 | 1.42 | 0.00 | 1.50 | 19.71 | 163.70 | 58.05 | 295.22 | 0.8849 | 270.0 | 224.1 | |
| 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. | |