| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.43 | 8.34 | 5.69 | 13.91 | 10.64 | 359.25 | -70.94 | 76.69 | 0.9559 | 50.0 | 97.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-02 01:00:32 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 |
| 2.90 | 7.11 | 4.80 | 11.84 | 10.84 | 359.33 | -70.86 | 76.47 | 0.9557 | 34.7 | 99.4 | |
| 0.00 | 0.26 | 0.00 | 0.44 | 9.80 | 358.94 | -71.26 | 77.61 | 0.9567 | 183.0 | 217.7 | |
| 0.53 | 0.97 | 0.89 | 1.63 | 9.45 | 358.73 | -71.47 | 78.01 | 0.9574 | -17.3 | 5.4 | |
| 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. | |