| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.68 | 11.65 | 5.80 | 12.19 | -13.14 | 60.55 | 61.08 | 255.42 | 0.8820 | -260.4 | -205.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-31 21:00:39 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 | 0.45 | 0.00 | 0.59 | -11.57 | 66.86 | 67.39 | 257.78 | 0.9270 | 384.0 | 361.0 | |
| 0.00 | 0.81 | 0.00 | 1.03 | -12.49 | 65.96 | 66.49 | 256.72 | 0.9215 | 181.0 | 191.7 | |
| 4.33 | 7.32 | 4.44 | 7.49 | -13.45 | 59.85 | 60.38 | 255.00 | 0.8772 | -392.3 | -277.5 | |
| 1.35 | 3.07 | 1.36 | 3.08 | -12.89 | 59.24 | 59.77 | 255.55 | 0.8717 | -628.3 | -509.6 | |
| 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. | |