| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.38 | 11.72 | 0.82 | 7.05 | -6.36 | 145.05 | -34.73 | 90.85 | 0.5684 | -23.5 | 152.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-02-25 10:00:27 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 |
| 1.38 | 4.48 | 0.82 | 2.66 | -6.79 | 146.18 | -33.60 | 91.49 | 0.5519 | 897.6 | 721.9 | |
| 0.00 | 2.07 | 0.00 | 1.23 | -6.73 | 145.85 | -33.92 | 91.42 | 0.5566 | 653.0 | 553.9 | |
| 0.00 | 1.29 | 0.00 | 0.77 | -6.24 | 145.68 | -34.10 | 90.56 | 0.5595 | 745.0 | 648.2 | |
| 0.00 | 1.64 | 0.00 | 1.01 | -5.86 | 143.21 | -36.56 | 90.17 | 0.5949 | -807.0 | -620.1 | |
| 0.00 | 1.72 | 0.00 | 1.06 | -5.59 | 143.20 | -36.58 | 89.72 | 0.5954 | -813.0 | -702.9 | |
| 0.00 | 0.52 | 0.00 | 0.32 | -5.69 | 142.93 | -36.85 | 89.92 | 0.5990 | -651.0 | -597.5 | |
| 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. | |