| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.17 | 0.00 | 5.94 | 14.30 | 183.66 | -0.69 | 2.56 | 0.3498 | 250.6 | 274.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 16:00:34 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 | 0.80 | 0.00 | 0.44 | 16.17 | 199.55 | 15.20 | 325.09 | 0.4417 | -745.0 | -636.2 | |
| 0.00 | 1.51 | 0.00 | 0.79 | 12.94 | 188.12 | 3.77 | 348.34 | 0.3183 | 734.0 | 583.9 | |
| 0.00 | 1.24 | 0.00 | 0.65 | 12.58 | 186.48 | 2.13 | 353.23 | 0.3082 | 942.0 | 755.8 | |
| 0.00 | 1.33 | 0.00 | 0.70 | 13.44 | 186.27 | 1.92 | 354.17 | 0.3219 | 695.0 | 613.9 | |
| 0.00 | 1.15 | 0.00 | 0.63 | 18.81 | 185.85 | 1.50 | 356.51 | 0.4086 | -676.0 | -538.3 | |
| 0.00 | 1.33 | 0.00 | 0.70 | 15.33 | 183.01 | -1.34 | 3.70 | 0.3522 | 694.0 | 463.5 | |
| 0.00 | 1.06 | 0.00 | 0.53 | 2.40 | 180.84 | -3.51 | 24.99 | 0.1456 | -829.0 | -642.4 | |
| 0.00 | 1.24 | 0.00 | 0.66 | 13.51 | 175.40 | -8.96 | 25.38 | 0.3547 | 774.0 | 642.1 | |
| 0.00 | 1.51 | 0.00 | 0.84 | 20.54 | 173.98 | -10.37 | 21.31 | 0.4658 | 666.0 | 549.1 | |
| 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. | |