| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.28 | 0.00 | 3.33 | 15.92 | 258.53 | -19.13 | 62.91 | 0.3555 | 809.0 | 691.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-23 23:00:34 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 | 1.06 | 0.00 | 0.56 | 15.68 | 259.15 | -18.51 | 62.86 | 0.3450 | 794.0 | 707.6 | |
| 0.00 | 1.42 | 0.00 | 0.75 | 15.43 | 259.01 | -18.65 | 63.68 | 0.3454 | 639.0 | 531.4 | |
| 0.00 | 1.06 | 0.00 | 0.56 | 16.32 | 258.26 | -19.40 | 62.17 | 0.3620 | 754.0 | 612.2 | |
| 0.00 | 1.77 | 0.00 | 0.94 | 15.95 | 258.26 | -19.39 | 63.10 | 0.3596 | 1091.0 | 909.4 | |
| 0.00 | 0.97 | 0.00 | 0.52 | 16.40 | 257.95 | -19.71 | 62.30 | 0.3669 | 767.0 | 597.3 | |
| 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. | |