| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 37.75 | 203.26 | 34.22 | 183.78 | 15.32 | 133.98 | 57.35 | 283.98 | 0.8389 | -844.0 | -236.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-15 16:00:38 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 |
| 28.56 | 201.28 | 26.01 | 182.25 | 15.44 | 134.22 | 57.59 | 284.12 | 0.8412 | -903.3 | -244.1 | |
| 0.00 | 0.27 | 0.00 | 0.24 | 13.66 | 133.03 | 56.40 | 282.02 | 0.8296 | 183.0 | 225.3 | |
| 6.58 | -1.00 | 5.89 | -1.00 | 15.16 | 133.57 | 56.94 | 283.81 | 0.8351 | -988.5 | 999999 | |
| 2.61 | -1.00 | 2.32 | -1.00 | 14.95 | 133.25 | 56.62 | 283.56 | 0.8320 | -943.7 | 999999 | |
| 0.00 | 1.71 | 0.00 | 1.29 | 10.16 | 125.85 | 49.21 | 277.70 | 0.7543 | 752.0 | 593.5 | |
| 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. | |