| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.13 | 0.00 | 3.16 | -5.08 | 28.23 | -34.63 | 107.97 | 0.5970 | 438.8 | 351.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-16 17:00:38 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 | 1.35 | 0.00 | 0.81 | -4.45 | 30.19 | -32.67 | 108.01 | 0.5680 | 762.0 | 638.8 | |
| 0.00 | 1.08 | 0.00 | 0.66 | -5.07 | 29.21 | -33.65 | 108.49 | 0.5842 | 601.0 | 487.0 | |
| 0.00 | 0.99 | 0.00 | 0.61 | -4.39 | 28.22 | -34.64 | 106.86 | 0.5944 | 647.0 | 498.8 | |
| 0.00 | 0.81 | 0.00 | 0.50 | -5.72 | 27.87 | -34.99 | 108.78 | 0.6049 | 707.0 | 535.2 | |
| 0.00 | 0.90 | 0.00 | 0.58 | -6.13 | 24.68 | -38.18 | 107.79 | 0.6478 | -523.0 | -512.7 | |
| 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. | |