| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.63 | 5.49 | 0.44 | 3.73 | 9.50 | 180.66 | 41.70 | 286.19 | 0.6854 | -441.1 | -367.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-21 08:00:38 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 | 1.08 | 0.00 | 0.75 | 8.96 | 182.00 | 43.04 | 284.96 | 0.7002 | -580.0 | -523.2 | |
| 0.63 | 1.80 | 0.44 | 1.24 | 9.14 | 181.86 | 42.90 | 285.26 | 0.6990 | -791.4 | -662.6 | |
| 0.00 | 0.54 | 0.00 | 0.36 | 9.19 | 180.04 | 41.09 | 285.91 | 0.6769 | -603.0 | -463.3 | |
| 0.00 | 1.17 | 0.00 | 0.79 | 9.47 | 179.96 | 41.00 | 286.34 | 0.6767 | -656.0 | -503.5 | |
| 0.00 | 0.90 | 0.00 | 0.59 | 11.16 | 177.72 | 38.76 | 289.66 | 0.6546 | 579.0 | 479.3 | |
| 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. | |