SDO HMI 2014-04-02 05:00:32 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 | 4.39 | 0.00 | 2.81 | 16.87 | 98.35 | 30.35 | 309.46 | 0.6329 | 591.5 | 485.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-02 05:00:32 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 | 0.88 | 0.00 | 0.60 | 10.21 | 108.32 | 40.33 | 292.28 | 0.6906 | 545.0 | 511.6 | |
| 0.00 | 1.41 | 0.00 | 0.90 | 12.65 | 102.98 | 34.98 | 298.84 | 0.6409 | 492.0 | 417.4 | |
| 0.00 | 1.05 | 0.00 | 0.70 | 24.20 | 96.75 | 28.75 | 318.60 | 0.6658 | 528.0 | 414.2 | |
| 0.00 | 1.05 | 0.00 | 0.61 | 21.22 | 83.56 | 15.56 | 331.52 | 0.5266 | 801.0 | 642.9 | |
| 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. | |