| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 15.24 | 0.00 | 7.84 | -16.09 | 200.98 | 7.84 | 211.84 | 0.2667 | -457.8 | -336.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 00:00:34 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 | 1.77 | 0.00 | 0.92 | -13.44 | 209.54 | 16.40 | 241.92 | 0.3126 | 782.0 | 470.3 | |
| 0.00 | 1.06 | 0.00 | 0.55 | -13.34 | 208.92 | 15.78 | 241.39 | 0.3027 | 744.0 | 599.9 | |
| 0.00 | 1.24 | 0.00 | 0.64 | -14.92 | 207.38 | 14.24 | 234.26 | 0.2942 | 784.0 | 598.9 | |
| 0.00 | 1.33 | 0.00 | 0.68 | -12.13 | 206.83 | 13.70 | 242.07 | 0.2632 | -894.0 | -738.6 | |
| 0.00 | 1.15 | 0.00 | 0.59 | -14.37 | 204.57 | 11.43 | 230.11 | 0.2514 | -598.0 | -449.2 | |
| 0.00 | 0.98 | 0.00 | 0.50 | -15.36 | 203.48 | 10.34 | 224.31 | 0.2489 | -675.0 | -542.2 | |
| 0.00 | 0.71 | 0.00 | 0.36 | -15.61 | 203.40 | 10.26 | 223.38 | 0.2509 | -932.0 | -708.0 | |
| 0.00 | 0.98 | 0.00 | 0.51 | -19.40 | 203.25 | 10.12 | 213.94 | 0.2980 | -899.0 | -760.5 | |
| 0.00 | 0.98 | 0.00 | 0.50 | -15.62 | 202.48 | 9.34 | 220.73 | 0.2406 | -859.0 | -668.3 | |
| 0.00 | 1.15 | 0.00 | 0.59 | -18.91 | 193.28 | 0.14 | 180.55 | 0.2376 | -921.0 | -818.1 | |
| 0.00 | 1.06 | 0.00 | 0.54 | -18.69 | 193.24 | 0.11 | 180.44 | 0.2339 | -879.0 | -778.7 | |
| 0.00 | 1.15 | 0.00 | 0.59 | -18.28 | 190.26 | -2.87 | 168.10 | 0.2319 | -751.0 | -535.1 | |
| 0.00 | 1.68 | 0.00 | 0.87 | -19.69 | 187.86 | -5.27 | 160.91 | 0.2658 | -854.0 | -646.8 | |
| 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. | |