| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 38.79 | 188.27 | 31.39 | 152.36 | -15.92 | 11.64 | 52.05 | 253.62 | 0.7926 | 727.1 | 233.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-18 11:00:24 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 |
| 20.25 | 116.47 | 16.62 | 95.70 | -16.47 | 12.29 | 52.70 | 253.01 | 0.7999 | 793.1 | 185.0 | |
| 2.72 | -1.00 | 2.21 | -1.00 | -16.40 | 11.86 | 52.27 | 253.03 | 0.7955 | 1096.9 | 999999 | |
| 15.82 | 65.59 | 12.56 | 52.03 | -14.77 | 10.93 | 51.34 | 254.98 | 0.7841 | 914.5 | 378.3 | |
| 0.00 | 0.94 | 0.00 | 0.71 | -14.61 | 8.63 | 49.04 | 254.88 | 0.7593 | 475.0 | 334.6 | |
| 0.00 | 1.02 | 0.00 | 0.81 | -19.64 | 10.08 | 50.49 | 248.65 | 0.7824 | 691.0 | 582.7 | |
| 0.00 | 1.02 | 0.00 | 0.75 | -16.34 | 7.05 | 47.45 | 252.33 | 0.7443 | -528.0 | -431.9 | |
| 0.00 | 1.53 | 0.00 | 1.14 | -17.97 | 7.27 | 47.68 | 250.21 | 0.7498 | -522.0 | -433.1 | |
| 0.00 | 1.70 | 0.00 | 1.22 | -18.21 | 4.87 | 45.27 | 249.34 | 0.7236 | -747.0 | -622.9 | |
| 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. | |