SDO HMI 2011-12-06 12:58:56 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 11.94 | 25.50 | 6.45 | 13.82 | -18.13 | 77.68 | -15.52 | 141.31 | 0.4073 | -183.9 | -212.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-06 12:58:56 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 |
| 4.18 | 4.86 | 2.22 | 2.59 | -17.86 | 81.61 | -11.60 | 148.34 | 0.3663 | 940.8 | 634.5 | |
| 0.00 | 1.71 | 0.00 | 0.91 | -17.52 | 79.73 | -13.48 | 143.89 | 0.3789 | 759.0 | 615.2 | |
| 0.00 | 2.05 | 0.00 | 1.10 | -17.71 | 79.04 | -14.17 | 142.86 | 0.3879 | 920.0 | 678.1 | |
| 7.76 | 8.19 | 4.23 | 4.46 | -18.55 | 76.77 | -16.43 | 140.19 | 0.4208 | -892.0 | -880.2 | |
| 0.00 | 3.41 | 0.00 | 1.86 | -17.71 | 76.14 | -17.07 | 137.76 | 0.4177 | -618.0 | -551.9 | |
| 0.00 | 2.47 | 0.00 | 1.36 | -18.59 | 75.40 | -17.81 | 138.04 | 0.4354 | -667.0 | -541.9 | |
| 0.00 | 2.81 | 0.00 | 1.54 | -18.12 | 75.42 | -17.79 | 137.29 | 0.4300 | -815.0 | -734.7 | |
| 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. | |