| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.47 | 14.02 | 1.25 | 7.24 | -2.28 | 314.03 | -15.57 | 76.31 | 0.2769 | 100.0 | 140.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-09 16:00:33 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 |
| 2.47 | 6.70 | 1.25 | 3.40 | -1.65 | 317.40 | -12.20 | 70.74 | 0.2247 | 1123.3 | 868.0 | |
| 0.00 | 2.47 | 0.00 | 1.27 | -4.09 | 314.18 | -15.42 | 83.58 | 0.2681 | -968.0 | -809.0 | |
| 0.00 | 3.44 | 0.00 | 1.82 | -2.01 | 309.54 | -20.05 | 79.51 | 0.3501 | -15.0 | -1.9 | |
| 0.00 | 1.41 | 0.00 | 0.75 | -2.70 | 309.37 | -20.23 | 81.53 | 0.3507 | 4.0 | 3.5 | |
| 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. | |