| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 34.82 | 170.61 | 20.56 | 100.99 | -21.03 | 68.62 | 20.82 | 217.43 | 0.5475 | 371.9 | 139.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-21 15:00:40 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 |
| 23.31 | 124.90 | 13.85 | 74.33 | -20.85 | 69.62 | 21.82 | 218.99 | 0.5540 | 1139.8 | 305.0 | |
| 0.00 | 1.27 | 0.00 | 0.75 | -20.39 | 68.85 | 21.05 | 218.58 | 0.5419 | 799.0 | 735.8 | |
| 0.82 | 4.63 | 0.48 | 2.74 | -21.00 | 68.87 | 21.07 | 217.87 | 0.5488 | 878.9 | 414.9 | |
| 0.63 | 1.72 | 0.37 | 1.01 | -20.18 | 68.61 | 20.81 | 218.53 | 0.5374 | 942.3 | 822.4 | |
| 0.00 | 1.18 | 0.00 | 0.69 | -20.20 | 68.37 | 20.57 | 218.18 | 0.5355 | 838.0 | 757.0 | |
| 0.54 | 1.63 | 0.32 | 0.95 | -19.83 | 68.25 | 20.45 | 218.48 | 0.5302 | 815.3 | 645.9 | |
| 0.00 | 1.27 | 0.00 | 0.75 | -22.75 | 66.19 | 18.39 | 212.29 | 0.5465 | -400.0 | -373.1 | |
| 2.63 | 6.53 | 1.53 | 3.80 | -21.40 | 65.46 | 17.65 | 212.72 | 0.5244 | -874.5 | -702.2 | |
| 0.00 | 1.36 | 0.00 | 0.79 | -21.98 | 65.46 | 17.66 | 212.09 | 0.5315 | -691.0 | -529.2 | |
| 0.00 | 2.09 | 0.00 | 1.21 | -21.19 | 65.33 | 17.53 | 212.76 | 0.5208 | -883.0 | -793.8 | |
| 0.00 | 1.72 | 0.00 | 1.01 | -22.10 | 65.13 | 17.33 | 211.48 | 0.5305 | -656.0 | -512.4 | |
| 6.89 | 18.59 | 4.01 | 10.80 | -21.89 | 64.80 | 16.99 | 211.22 | 0.5252 | -1073.9 | -777.8 | |
| 0.00 | 0.91 | 0.00 | 0.53 | -22.19 | 64.39 | 16.58 | 210.30 | 0.5258 | -512.0 | -510.3 | |
| 0.00 | 2.81 | 0.00 | 1.63 | -22.01 | 64.19 | 16.39 | 210.20 | 0.5222 | -569.0 | -508.7 | |
| 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. | |