| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 6.37 | 18.40 | 4.28 | 12.27 | -21.22 | 334.61 | -33.04 | 130.63 | 0.6719 | -117.3 | -80.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-19 09:59:01 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 | 0.70 | 0.00 | 0.45 | -21.18 | 336.57 | -31.09 | 132.23 | 0.6525 | 675.0 | 594.5 | |
| 0.44 | 3.84 | 0.28 | 2.50 | -21.06 | 336.41 | -31.25 | 131.94 | 0.6530 | 830.0 | 508.2 | |
| 0.00 | 0.70 | 0.00 | 0.46 | -21.24 | 335.46 | -32.20 | 131.35 | 0.6638 | 562.0 | 448.9 | |
| 0.00 | 1.57 | 0.00 | 1.04 | -20.89 | 335.17 | -32.49 | 130.68 | 0.6640 | -175.0 | -135.9 | |
| 0.00 | 1.13 | 0.00 | 0.76 | -21.00 | 334.49 | -33.16 | 130.25 | 0.6714 | -541.0 | -452.5 | |
| 2.62 | 5.14 | 1.76 | 3.46 | -21.16 | 333.91 | -33.74 | 129.98 | 0.6784 | -783.5 | -638.6 | |
| 3.31 | 5.32 | 2.24 | 3.60 | -21.52 | 333.55 | -34.11 | 130.12 | 0.6846 | -577.4 | -500.2 | |
| 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. | |