| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.35 | 94.79 | 17.35 | 84.67 | -23.31 | 114.29 | 54.92 | 244.70 | 0.8334 | 472.5 | 218.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-30 03:00:36 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 | 0.89 | 0.00 | 0.75 | -15.62 | 112.78 | 53.41 | 253.73 | 0.8077 | -481.0 | -405.7 | |
| 19.35 | 88.82 | 17.35 | 79.74 | -23.32 | 114.53 | 55.16 | 244.75 | 0.8355 | 773.9 | 251.8 | |
| 0.00 | 0.27 | 0.00 | 0.23 | -21.95 | 113.00 | 53.63 | 246.05 | 0.8193 | -297.0 | -273.7 | |
| 0.00 | 1.16 | 0.00 | 1.02 | -23.34 | 113.63 | 54.26 | 244.53 | 0.8276 | 627.0 | 607.3 | |
| 0.00 | 1.07 | 0.00 | 0.85 | -22.80 | 108.79 | 49.42 | 243.99 | 0.7813 | -501.0 | -418.2 | |
| 0.00 | 1.25 | 0.00 | 1.00 | -25.30 | 108.72 | 49.35 | 240.87 | 0.7875 | -472.0 | -511.2 | |
| 0.00 | 0.71 | 0.00 | 0.57 | -26.05 | 108.21 | 48.84 | 239.79 | 0.7849 | -645.0 | -507.9 | |
| 0.00 | 0.62 | 0.00 | 0.51 | -28.03 | 108.54 | 49.17 | 237.50 | 0.7942 | -151.0 | -188.9 | |
| 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. | |