| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.95 | 0.00 | 4.12 | -22.31 | 52.24 | 45.75 | 235.42 | 0.8066 | -144.8 | -151.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-25 22:59:08 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 | 0.99 | 0.00 | 0.86 | -20.99 | 55.14 | 48.65 | 238.40 | 0.8250 | 478.0 | 421.7 | |
| 0.00 | 0.63 | 0.00 | 0.58 | -24.21 | 55.79 | 49.30 | 235.23 | 0.8438 | 474.0 | 386.1 | |
| 0.00 | 0.99 | 0.00 | 0.81 | -21.09 | 52.35 | 45.86 | 236.87 | 0.8017 | -523.0 | -450.2 | |
| 0.00 | 0.36 | 0.00 | 0.29 | -21.12 | 51.90 | 45.40 | 236.60 | 0.7979 | -268.0 | -418.5 | |
| 0.00 | 1.08 | 0.00 | 0.85 | -21.32 | 50.01 | 43.51 | 235.32 | 0.7822 | -449.0 | -435.6 | |
| 0.00 | 0.90 | 0.00 | 0.73 | -25.32 | 48.64 | 42.14 | 230.12 | 0.7926 | -581.0 | -483.9 | |
| 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. | |