| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.19 | 12.60 | 1.10 | 6.37 | -12.85 | 107.27 | 7.93 | 230.91 | 0.1744 | 929.2 | 793.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 20:00:31 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 |
| 0.61 | 4.82 | 0.31 | 2.43 | -13.02 | 107.71 | 8.38 | 231.57 | 0.1821 | 975.0 | 834.4 | |
| 1.58 | 3.50 | 0.79 | 1.77 | -13.33 | 107.41 | 8.08 | 229.24 | 0.1813 | 1046.4 | 884.5 | |
| 0.00 | 1.40 | 0.00 | 0.71 | -12.79 | 107.37 | 8.03 | 231.47 | 0.1749 | 1028.0 | 822.9 | |
| 0.00 | 0.96 | 0.00 | 0.49 | -13.24 | 107.13 | 7.80 | 228.63 | 0.1768 | 868.0 | 706.6 | |
| 0.00 | 0.61 | 0.00 | 0.31 | -11.96 | 106.45 | 7.11 | 232.23 | 0.1539 | 749.0 | 454.0 | |
| 0.00 | 1.31 | 0.00 | 0.66 | -11.15 | 105.63 | 6.29 | 233.46 | 0.1345 | 919.0 | 720.4 | |
| 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. | |