| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.91 | 0.00 | 7.56 | -18.98 | 120.08 | 48.78 | 250.02 | 0.7511 | -177.5 | -180.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 23:00:32 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 | 0.79 | 0.00 | 0.82 | -17.73 | 133.51 | 62.21 | 253.34 | 0.8815 | 579.0 | 513.0 | |
| 0.00 | 1.05 | 0.00 | 1.09 | -17.65 | 133.33 | 62.03 | 253.42 | 0.8801 | 169.0 | 165.1 | |
| 0.00 | 0.88 | 0.00 | 0.70 | -19.12 | 123.06 | 51.76 | 250.75 | 0.7883 | 561.0 | 480.1 | |
| 0.00 | 1.14 | 0.00 | 0.79 | -18.06 | 115.10 | 43.80 | 250.72 | 0.6995 | -400.0 | -348.2 | |
| 0.00 | 1.40 | 0.00 | 0.95 | -17.52 | 114.07 | 42.77 | 251.26 | 0.6861 | -464.0 | -382.2 | |
| 0.00 | 2.72 | 0.00 | 1.88 | -20.15 | 114.51 | 43.22 | 247.62 | 0.6975 | -672.0 | -524.6 | |
| 0.00 | 1.14 | 0.00 | 0.79 | -20.84 | 114.53 | 43.24 | 246.67 | 0.6996 | -515.0 | -482.0 | |
| 0.00 | 0.79 | 0.00 | 0.54 | -20.44 | 114.39 | 43.10 | 247.18 | 0.6969 | -678.0 | -555.3 | |
| 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. | |