| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 10.73 | 0.00 | 8.79 | 10.99 | 172.03 | 52.98 | 279.00 | 0.7922 | 121.2 | 209.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-12 11:00:39 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 | 0.72 | 0.00 | 0.72 | 12.05 | 179.80 | 60.75 | 280.19 | 0.8689 | -512.0 | -418.4 | |
| 0.00 | 0.90 | 0.00 | 0.91 | 13.37 | 180.28 | 61.23 | 281.71 | 0.8729 | -322.0 | -389.6 | |
| 0.00 | 5.14 | 0.00 | 4.30 | 9.60 | 173.15 | 54.10 | 277.16 | 0.8071 | 402.0 | 284.3 | |
| 0.00 | 1.17 | 0.00 | 0.95 | 10.94 | 171.91 | 52.86 | 278.83 | 0.7943 | 538.0 | 461.5 | |
| 0.00 | 2.80 | 0.00 | 1.91 | 12.61 | 162.73 | 43.68 | 281.49 | 0.6901 | 500.0 | 436.8 | |
| 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. | |