SDO HMI 2014-08-11 13:00:39 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 |
| 1.71 | 9.01 | 0.98 | 5.16 | 12.77 | 161.02 | 29.85 | 284.43 | 0.5032 | 82.7 | 103.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-11 13:00:39 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 | 1.17 | 0.00 | 0.69 | 13.17 | 163.25 | 32.08 | 284.52 | 0.5363 | -804.0 | -557.8 | |
| 0.00 | 1.62 | 0.00 | 0.93 | 11.79 | 161.10 | 29.93 | 282.47 | 0.5022 | -836.0 | -732.5 | |
| 1.71 | 3.97 | 0.98 | 2.26 | 12.90 | 160.56 | 29.39 | 284.82 | 0.4968 | 851.0 | 663.8 | |
| 0.00 | 1.44 | 0.00 | 0.82 | 13.32 | 160.61 | 29.44 | 285.65 | 0.4987 | 627.0 | 519.4 | |
| 0.00 | 0.81 | 0.00 | 0.46 | 12.56 | 160.48 | 29.31 | 284.18 | 0.4948 | 591.0 | 465.1 | |
| 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. | |