| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.87 | 15.98 | 1.59 | 8.87 | 12.67 | 282.09 | -18.34 | 42.63 | 0.4548 | 326.1 | 163.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-15 14:00:29 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 |
| 1.30 | 3.82 | 0.72 | 2.10 | 12.33 | 283.72 | -16.71 | 40.55 | 0.4339 | -967.7 | -765.1 | |
| 0.35 | 3.04 | 0.19 | 1.68 | 12.77 | 282.92 | -17.51 | 41.20 | 0.4472 | -714.2 | -487.2 | |
| 0.00 | 0.43 | 0.00 | 0.24 | 12.21 | 281.90 | -18.53 | 43.68 | 0.4516 | 852.0 | 673.0 | |
| 0.00 | 1.39 | 0.00 | 0.77 | 12.26 | 281.51 | -18.92 | 44.20 | 0.4563 | 727.0 | 612.3 | |
| 1.22 | 3.91 | 0.68 | 2.19 | 13.17 | 281.05 | -19.38 | 43.51 | 0.4712 | 886.1 | 687.5 | |
| 0.00 | 0.96 | 0.00 | 0.53 | 11.87 | 281.09 | -19.34 | 45.46 | 0.4567 | 588.0 | 459.5 | |
| 0.00 | 2.43 | 0.00 | 1.36 | 12.89 | 280.98 | -19.45 | 44.04 | 0.4689 | 926.0 | 775.2 | |
| 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. | |