| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.17 | 7.31 | 1.22 | 4.12 | -15.70 | 112.77 | 24.25 | 236.90 | 0.4729 | -260.0 | -289.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-30 02:59:10 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 | 0.90 | 0.00 | 0.53 | -16.16 | 117.93 | 29.41 | 240.72 | 0.5428 | 706.0 | 561.0 | |
| 0.00 | 0.36 | 0.00 | 0.21 | -16.13 | 117.12 | 28.61 | 240.16 | 0.5323 | 769.0 | 631.2 | |
| 0.00 | 0.63 | 0.00 | 0.36 | -15.62 | 113.16 | 24.64 | 237.60 | 0.4775 | -697.0 | -584.3 | |
| 2.17 | 2.44 | 1.22 | 1.37 | -16.00 | 112.83 | 24.31 | 236.57 | 0.4760 | -701.0 | -587.3 | |
| 0.00 | 1.54 | 0.00 | 0.85 | -15.14 | 110.52 | 22.00 | 235.75 | 0.4394 | -733.0 | -617.0 | |
| 0.00 | 1.44 | 0.00 | 0.80 | -15.42 | 110.32 | 21.80 | 234.96 | 0.4391 | -807.0 | -565.5 | |
| 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. | |