| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.31 | 19.30 | 2.45 | 34.90 | -14.74 | 119.21 | 71.98 | 252.87 | 0.9633 | 95.1 | 313.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-16 09:59:02 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 | 2.53 | 0.00 | 4.75 | -13.85 | 119.90 | 72.68 | 253.92 | 0.9658 | 336.0 | 320.2 | |
| 1.31 | 14.06 | 2.45 | 26.10 | -14.64 | 119.72 | 72.49 | 253.07 | 0.9657 | 486.0 | 405.4 | |
| 0.00 | 0.61 | 0.00 | 0.93 | -15.49 | 115.51 | 68.28 | 251.38 | 0.9461 | -222.0 | -121.1 | |
| 0.00 | 1.05 | 0.00 | 1.54 | -16.25 | 114.78 | 67.56 | 250.44 | 0.9432 | -380.0 | -298.8 | |
| 0.00 | 1.05 | 0.00 | 1.58 | -17.14 | 115.11 | 67.88 | 249.59 | 0.9460 | -311.0 | -230.2 | |
| 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. | |