| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.32 | 0.00 | 5.33 | -23.44 | 96.91 | -36.49 | 119.91 | 0.6223 | 460.8 | 451.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-28 06:00:31 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 | 2.89 | 0.00 | 1.71 | -22.21 | 102.78 | -30.62 | 120.87 | 0.5515 | 491.0 | 602.6 | |
| 0.00 | 1.23 | 0.00 | 0.73 | -22.02 | 102.76 | -30.65 | 120.54 | 0.5508 | 746.0 | 671.1 | |
| 0.00 | 0.88 | 0.00 | 0.52 | -22.35 | 102.49 | -30.92 | 120.91 | 0.5560 | 603.0 | 531.0 | |
| 0.00 | 1.05 | 0.00 | 0.65 | -22.28 | 98.29 | -35.11 | 118.39 | 0.6073 | 658.0 | 593.8 | |
| 0.00 | 1.31 | 0.00 | 0.89 | -23.00 | 92.05 | -41.36 | 116.78 | 0.6837 | 696.0 | 558.8 | |
| 0.00 | 0.96 | 0.00 | 0.83 | -29.29 | 80.33 | -53.07 | 121.32 | 0.8184 | -429.0 | -331.3 | |
| 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. | |