SDO HMI 2014-03-31 13:00:32 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 | 9.38 | 0.00 | 4.68 | -11.89 | 84.49 | -5.51 | 134.78 | 0.1332 | 777.2 | 647.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 13:00:32 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 | 1.93 | 0.00 | 0.96 | -12.43 | 84.91 | -5.09 | 139.78 | 0.1349 | 847.0 | 731.4 | |
| 0.00 | 3.51 | 0.00 | 1.75 | -11.61 | 84.53 | -5.48 | 133.40 | 0.1293 | 820.0 | 681.7 | |
| 0.00 | 0.96 | 0.00 | 0.48 | -11.82 | 84.37 | -5.63 | 133.77 | 0.1337 | 899.0 | 723.5 | |
| 0.00 | 1.93 | 0.00 | 0.96 | -11.97 | 84.27 | -5.73 | 134.11 | 0.1367 | 628.0 | 552.7 | |
| 0.00 | 1.05 | 0.00 | 0.53 | -11.78 | 84.12 | -5.88 | 132.39 | 0.1364 | 692.0 | 487.4 | |
| 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. | |