| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 43.80 | 284.30 | 30.68 | 198.85 | 11.99 | 275.44 | 41.58 | 293.11 | 0.7080 | -798.4 | -316.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-16 22:00:34 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 | 1.06 | 0.00 | 0.77 | 9.11 | 278.79 | 44.93 | 287.85 | 0.7349 | -494.0 | -402.8 | |
| 43.80 | 276.78 | 30.68 | 193.84 | 11.95 | 275.54 | 41.68 | 292.99 | 0.7090 | -991.8 | -332.9 | |
| 0.00 | 0.88 | 0.00 | 0.61 | 13.80 | 273.26 | 39.40 | 296.64 | 0.6919 | -589.0 | -416.1 | |
| 0.00 | 1.77 | 0.00 | 1.18 | 13.33 | 271.86 | 37.99 | 296.82 | 0.6735 | 452.0 | 310.6 | |
| 0.00 | 0.80 | 0.00 | 0.52 | 12.81 | 270.05 | 36.19 | 297.21 | 0.6497 | 579.0 | 487.0 | |
| 0.00 | 0.97 | 0.00 | 0.62 | 14.21 | 268.36 | 34.49 | 300.29 | 0.6381 | 615.0 | 514.5 | |
| 0.00 | 2.04 | 0.00 | 1.31 | 16.07 | 267.80 | 33.94 | 303.25 | 0.6438 | 582.0 | 529.7 | |
| 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. | |