| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.33 | 11.65 | 1.68 | 5.86 | -12.91 | 107.34 | 7.45 | 228.87 | 0.1686 | 906.2 | 783.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 19:00:31 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 |
| 1.40 | 4.73 | 0.71 | 2.38 | -13.00 | 107.68 | 7.79 | 229.66 | 0.1740 | 1025.3 | 854.1 | |
| 1.93 | 4.12 | 0.97 | 2.07 | -13.34 | 107.41 | 7.52 | 227.20 | 0.1743 | 1049.5 | 842.5 | |
| 0.00 | 1.14 | 0.00 | 0.57 | -12.76 | 107.36 | 7.47 | 229.59 | 0.1673 | 972.0 | 747.6 | |
| 0.00 | 1.05 | 0.00 | 0.53 | -12.02 | 106.51 | 6.62 | 229.91 | 0.1480 | 762.0 | 636.1 | |
| 0.00 | 0.61 | 0.00 | 0.31 | -11.16 | 105.60 | 5.71 | 230.76 | 0.1266 | 761.0 | 501.3 | |
| 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. | |