| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.61 | 0.00 | 2.94 | -11.81 | 141.74 | 17.40 | 245.44 | 0.3241 | 701.6 | 595.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-25 05:00:35 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 |
| 0.00 | 0.89 | 0.00 | 0.50 | -15.35 | 150.32 | 25.98 | 245.55 | 0.4659 | 626.0 | 557.1 | |
| 0.00 | 0.98 | 0.00 | 0.52 | -9.79 | 145.88 | 21.55 | 255.51 | 0.3754 | 767.0 | 528.3 | |
| 0.00 | 1.16 | 0.00 | 0.60 | -8.44 | 142.08 | 17.74 | 257.25 | 0.3103 | 634.0 | 495.4 | |
| 0.00 | 0.89 | 0.00 | 0.45 | -9.89 | 137.82 | 13.49 | 248.22 | 0.2485 | 699.0 | 654.2 | |
| 0.00 | 1.69 | 0.00 | 0.87 | -14.30 | 136.13 | 11.79 | 229.77 | 0.2606 | 782.0 | 696.7 | |
| 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. | |