| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 17.34 | 0.00 | 9.42 | 17.19 | 90.36 | 2.56 | 353.96 | 0.4068 | -814.1 | -679.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 17:00:31 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 |
| 0.00 | 1.05 | 0.00 | 0.57 | 16.11 | 92.02 | 4.22 | 349.61 | 0.3934 | -901.0 | -649.2 | |
| 0.00 | 1.40 | 0.00 | 0.76 | 17.12 | 90.94 | 3.14 | 352.57 | 0.4067 | -747.0 | -577.1 | |
| 0.00 | 0.96 | 0.00 | 0.52 | 16.85 | 90.75 | 2.95 | 352.94 | 0.4021 | -792.0 | -637.2 | |
| 0.00 | 1.75 | 0.00 | 0.96 | 17.97 | 90.74 | 2.94 | 353.31 | 0.4198 | -661.0 | -601.8 | |
| 0.00 | 4.38 | 0.00 | 2.39 | 17.74 | 90.58 | 2.77 | 353.61 | 0.4158 | -973.0 | -729.5 | |
| 0.00 | 1.93 | 0.00 | 1.05 | 17.28 | 90.35 | 2.55 | 354.01 | 0.4081 | -881.0 | -760.2 | |
| 0.00 | 2.54 | 0.00 | 1.37 | 16.75 | 89.84 | 2.04 | 355.08 | 0.3990 | -931.0 | -781.6 | |
| 0.00 | 2.28 | 0.00 | 1.23 | 16.69 | 89.46 | 1.66 | 355.97 | 0.3975 | -786.0 | -619.8 | |
| 0.00 | 1.05 | 0.00 | 0.57 | 16.98 | 89.25 | 1.45 | 356.54 | 0.4019 | -655.0 | -533.9 | |
| 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. | |