| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 8.67 | 0.00 | 4.90 | -20.98 | 310.91 | -6.35 | 167.83 | 0.4840 | -451.7 | -311.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-20 23:00:34 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 | 1.24 | 0.00 | 0.69 | -19.18 | 315.89 | -1.37 | 177.09 | 0.4452 | 832.0 | 687.0 | |
| 0.00 | 0.97 | 0.00 | 0.54 | -18.49 | 312.62 | -4.63 | 169.94 | 0.4403 | 746.0 | 605.2 | |
| 0.00 | 0.62 | 0.00 | 0.35 | -21.78 | 310.23 | -7.02 | 166.76 | 0.4973 | -794.0 | -644.7 | |
| 0.00 | 0.80 | 0.00 | 0.45 | -21.57 | 310.11 | -7.14 | 166.44 | 0.4947 | -801.0 | -614.8 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -21.27 | 310.00 | -7.25 | 166.07 | 0.4906 | -719.0 | -488.7 | |
| 0.00 | 0.62 | 0.00 | 0.35 | -21.86 | 309.61 | -7.64 | 165.67 | 0.5007 | -854.0 | -731.3 | |
| 0.00 | 0.44 | 0.00 | 0.25 | -21.27 | 309.61 | -7.64 | 165.35 | 0.4922 | -848.0 | -732.2 | |
| 0.00 | 1.15 | 0.00 | 0.66 | -22.03 | 309.53 | -7.72 | 165.63 | 0.5035 | -620.0 | -548.1 | |
| 0.00 | 1.68 | 0.00 | 0.96 | -21.79 | 309.35 | -7.90 | 165.17 | 0.5007 | -1007.0 | -724.2 | |
| 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. | |