| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 12.81 | 0.00 | 6.47 | -13.17 | 84.05 | 8.89 | 230.81 | 0.1973 | 615.3 | 425.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 16:00:32 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 |
| 0.00 | 1.14 | 0.00 | 0.59 | -12.25 | 90.50 | 15.34 | 248.09 | 0.2800 | 802.0 | 646.9 | |
| 0.00 | 1.32 | 0.00 | 0.66 | -12.08 | 85.16 | 10.00 | 239.83 | 0.1972 | 964.0 | 758.6 | |
| 0.00 | 2.72 | 0.00 | 1.37 | -11.75 | 85.05 | 9.89 | 241.08 | 0.1930 | 708.0 | 759.5 | |
| 0.00 | 1.40 | 0.00 | 0.71 | -12.65 | 85.02 | 9.86 | 236.99 | 0.2002 | 747.0 | 568.2 | |
| 0.00 | 1.40 | 0.00 | 0.71 | -12.01 | 83.76 | 8.60 | 236.42 | 0.1763 | 767.0 | 643.7 | |
| 0.00 | 2.02 | 0.00 | 1.02 | -14.34 | 83.56 | 8.40 | 225.86 | 0.1980 | 1052.0 | 803.1 | |
| 0.00 | 2.81 | 0.00 | 1.41 | -15.44 | 79.88 | 4.72 | 207.01 | 0.1753 | -733.0 | -602.2 | |
| 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. | |