SDO HMI 2014-08-13 19:00:38 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 |
| 0.72 | 5.31 | 0.36 | 2.64 | 7.10 | 107.38 | 5.97 | 275.57 | 0.1042 | -449.2 | -405.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-13 19:00:38 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 |
| 0.72 | 2.07 | 0.36 | 1.03 | 7.26 | 107.96 | 6.55 | 276.51 | 0.1145 | -1073.8 | -864.9 | |
| 0.00 | 0.99 | 0.00 | 0.49 | 6.90 | 107.90 | 6.49 | 273.35 | 0.1129 | -684.0 | -520.8 | |
| 0.00 | 1.35 | 0.00 | 0.67 | 7.14 | 107.75 | 6.34 | 275.64 | 0.1106 | -916.0 | -710.9 | |
| 0.00 | 0.90 | 0.00 | 0.45 | 6.90 | 104.92 | 3.51 | 275.73 | 0.0614 | 1102.0 | 873.4 | |
| 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. | |