SDO HMI 2014-04-08 10:00:33 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.33 | 0.00 | 4.22 | -13.82 | 305.03 | -41.06 | 104.26 | 0.6574 | 249.8 | 226.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-08 10:00:33 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 | 0.97 | 0.00 | 0.58 | -12.41 | 312.62 | -33.47 | 103.28 | 0.5556 | 613.0 | 476.9 | |
| 0.00 | 0.26 | 0.00 | 0.17 | -17.85 | 309.08 | -37.01 | 111.36 | 0.6175 | 616.0 | 554.7 | |
| 0.00 | 1.23 | 0.00 | 0.78 | -18.06 | 308.99 | -37.10 | 111.66 | 0.6193 | 692.0 | 627.8 | |
| 0.00 | 1.06 | 0.00 | 0.65 | -11.58 | 309.93 | -36.16 | 101.31 | 0.5917 | 633.0 | 541.9 | |
| 0.00 | 0.79 | 0.00 | 0.51 | -10.38 | 306.46 | -39.63 | 98.94 | 0.6374 | 677.0 | 593.1 | |
| 0.00 | 0.35 | 0.00 | 0.25 | -15.15 | 300.72 | -45.37 | 105.29 | 0.7145 | -498.0 | -561.2 | |
| 0.00 | 0.79 | 0.00 | 0.61 | -15.89 | 296.41 | -49.68 | 105.71 | 0.7640 | -455.0 | -408.6 | |
| 0.00 | 0.88 | 0.00 | 0.67 | -11.49 | 296.44 | -49.65 | 99.92 | 0.7605 | -280.0 | -253.0 | |
| 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. | |