| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.40 | 0.00 | 6.07 | -14.18 | 145.79 | -5.88 | 164.21 | 0.3675 | 145.7 | 95.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-08 11:59:03 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 | 2.72 | 0.00 | 1.45 | -14.76 | 148.62 | -3.05 | 171.85 | 0.3650 | 869.0 | 624.0 | |
| 0.00 | 1.58 | 0.00 | 0.84 | -15.09 | 148.08 | -3.59 | 170.60 | 0.3715 | 834.0 | 527.2 | |
| 0.00 | 1.05 | 0.00 | 0.56 | -13.81 | 148.01 | -3.66 | 169.79 | 0.3511 | 925.0 | 833.0 | |
| 0.00 | 1.14 | 0.00 | 0.60 | -12.41 | 145.32 | -6.35 | 161.38 | 0.3397 | -838.0 | -686.3 | |
| 0.00 | 1.23 | 0.00 | 0.66 | -15.32 | 144.27 | -7.40 | 161.36 | 0.3901 | 790.0 | 608.6 | |
| 0.00 | 1.75 | 0.00 | 0.93 | -13.49 | 143.06 | -8.61 | 156.68 | 0.3694 | -722.0 | -589.0 | |
| 0.00 | 1.93 | 0.00 | 1.03 | -13.72 | 142.46 | -9.21 | 155.51 | 0.3768 | -838.0 | -650.0 | |
| 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. | |