| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 27.35 | 181.74 | 20.93 | 138.70 | -24.81 | 190.08 | 45.63 | 238.54 | 0.7629 | 704.0 | 264.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 22:00:38 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 | 0.99 | 0.00 | 0.72 | -19.22 | 189.46 | 45.00 | 245.42 | 0.7366 | -566.0 | -452.5 | |
| 27.35 | 172.02 | 20.93 | 131.70 | -24.72 | 190.31 | 45.86 | 238.75 | 0.7647 | 989.0 | 311.3 | |
| 0.00 | 5.49 | 0.00 | 3.94 | -25.91 | 185.87 | 41.41 | 235.24 | 0.7265 | -654.0 | -553.2 | |
| 0.00 | 0.72 | 0.00 | 0.52 | -28.02 | 184.54 | 40.09 | 231.90 | 0.7246 | -509.0 | -456.8 | |
| 0.00 | 1.35 | 0.00 | 0.96 | -28.41 | 183.95 | 39.50 | 231.09 | 0.7212 | -595.0 | -454.7 | |
| 0.00 | 1.17 | 0.00 | 0.86 | -31.55 | 184.41 | 39.95 | 227.59 | 0.7434 | -122.0 | -157.9 | |
| 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. | |