| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 34.63 | 221.91 | 33.82 | 216.69 | -21.12 | 16.27 | 54.18 | 241.38 | 0.8636 | 770.6 | 228.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-17 21:00:30 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 | 1.05 | 0.00 | 1.06 | -17.60 | 19.02 | 56.92 | 246.19 | 0.8750 | 396.0 | 332.4 | |
| 0.00 | 1.22 | 0.00 | 1.17 | -17.46 | 17.04 | 54.94 | 245.68 | 0.8589 | 440.0 | 377.4 | |
| 18.06 | 216.33 | 17.77 | 211.47 | -21.26 | 16.56 | 54.47 | 241.34 | 0.8663 | 630.0 | 227.6 | |
| 16.57 | -3.00 | 16.05 | -3.00 | -21.05 | 16.01 | 53.91 | 241.36 | 0.8613 | 1097.3 | 999999 | |
| 0.00 | 0.26 | 0.00 | 0.24 | -21.00 | 13.80 | 51.70 | 240.54 | 0.8436 | 367.0 | 358.0 | |
| 0.00 | 0.96 | 0.00 | 0.88 | -21.35 | 13.66 | 51.56 | 240.10 | 0.8437 | 506.0 | 462.6 | |
| 0.00 | 1.13 | 0.00 | 1.06 | -22.30 | 13.94 | 51.84 | 239.17 | 0.8493 | 508.0 | 393.5 | |
| 0.00 | 0.96 | 0.00 | 0.81 | -19.72 | 10.58 | 48.48 | 240.58 | 0.8114 | -339.0 | -340.3 | |
| 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. | |