| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.84 | 9.72 | 1.23 | 6.55 | 18.26 | 89.55 | -35.06 | 53.57 | 0.6797 | -466.0 | -460.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-28 22:00:31 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 | 1.14 | 0.00 | 0.76 | 18.23 | 90.51 | -34.10 | 52.91 | 0.6700 | -702.0 | -652.3 | |
| 0.00 | 1.75 | 0.00 | 1.16 | 17.87 | 90.40 | -34.21 | 53.44 | 0.6686 | -844.0 | -669.5 | |
| 0.00 | 0.44 | 0.00 | 0.29 | 18.38 | 90.13 | -34.48 | 53.01 | 0.6750 | -443.0 | -382.6 | |
| 1.84 | 3.68 | 1.23 | 2.45 | 17.83 | 90.10 | -34.51 | 53.72 | 0.6714 | -836.7 | -692.4 | |
| 0.00 | 1.66 | 0.00 | 1.12 | 18.44 | 89.85 | -34.76 | 53.16 | 0.6782 | -462.0 | -350.9 | |
| 0.00 | 0.26 | 0.00 | 0.18 | 18.24 | 89.86 | -34.76 | 53.40 | 0.6768 | -472.0 | -436.0 | |
| 0.00 | 0.79 | 0.00 | 0.59 | 20.46 | 83.39 | -41.22 | 55.17 | 0.7545 | 583.0 | 420.3 | |
| 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. | |