| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.32 | 115.20 | 18.65 | 111.29 | 11.82 | 263.11 | 56.77 | 287.29 | 0.8582 | -414.7 | -178.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-19 00:00:34 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 |
| 18.43 | 109.17 | 18.05 | 107.08 | 11.78 | 263.73 | 57.39 | 287.00 | 0.8643 | -649.5 | -204.1 | |
| 0.00 | 0.62 | 0.00 | 0.50 | 12.53 | 255.41 | 49.06 | 290.47 | 0.7894 | 448.0 | 363.7 | |
| 0.00 | 0.80 | 0.00 | 0.62 | 13.11 | 253.83 | 47.49 | 291.78 | 0.7753 | 248.0 | 217.0 | |
| 0.00 | 1.68 | 0.00 | 1.14 | 13.06 | 245.30 | 38.95 | 295.73 | 0.6822 | 605.0 | 488.5 | |
| 0.89 | 2.13 | 0.60 | 1.43 | 12.74 | 245.16 | 38.81 | 295.37 | 0.6789 | 717.7 | 624.0 | |
| 0.00 | 0.80 | 0.00 | 0.52 | 13.09 | 243.07 | 36.72 | 297.08 | 0.6564 | 599.0 | 530.6 | |
| 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. | |