| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.25 | 16.37 | 1.15 | 8.37 | 6.08 | 11.56 | -5.73 | 23.29 | 0.2527 | 451.6 | 112.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-09 18:00:28 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 | 1.47 | 0.00 | 0.75 | 7.48 | 15.13 | -2.16 | 8.39 | 0.2578 | 764.0 | 635.8 | |
| 2.25 | 6.93 | 1.15 | 3.54 | 5.91 | 12.44 | -4.86 | 20.36 | 0.2431 | -1009.8 | -876.8 | |
| 0.00 | 3.29 | 0.00 | 1.69 | 6.06 | 10.27 | -7.02 | 27.96 | 0.2605 | 919.0 | 552.8 | |
| 0.00 | 1.65 | 0.00 | 0.84 | 5.70 | 10.10 | -7.20 | 29.24 | 0.2565 | 1097.0 | 990.6 | |
| 0.00 | 3.03 | 0.00 | 1.55 | 6.00 | 10.03 | -7.26 | 28.88 | 0.2616 | 707.0 | 425.1 | |
| 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. | |