| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.53 | 20.90 | 1.76 | 10.40 | 8.01 | 207.61 | -5.16 | 76.81 | 0.0920 | 55.8 | 227.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-28 21:00:33 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 |
| 0.00 | 2.56 | 0.00 | 1.27 | 7.33 | 210.61 | -2.16 | 76.78 | 0.0385 | -886.0 | -817.5 | |
| 0.00 | 1.23 | 0.00 | 0.61 | 7.51 | 209.49 | -3.28 | 78.12 | 0.0582 | -1009.0 | -859.6 | |
| 0.00 | 2.56 | 0.00 | 1.27 | 7.68 | 208.34 | -4.43 | 78.85 | 0.0785 | -939.0 | -742.0 | |
| 3.53 | 11.82 | 1.76 | 5.89 | 8.32 | 206.84 | -5.93 | 75.39 | 0.1062 | 1230.4 | 824.2 | |
| 0.00 | 2.73 | 0.00 | 1.36 | 7.81 | 206.60 | -6.17 | 80.53 | 0.1085 | 990.0 | 785.0 | |
| 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. | |