| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.09 | 9.17 | 2.33 | 6.81 | 12.08 | 278.07 | 47.77 | 283.13 | 0.7454 | -228.9 | -59.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-07 20:00:40 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 | 1.09 | 0.00 | 0.86 | 11.03 | 281.54 | 51.25 | 281.27 | 0.7828 | -444.0 | -377.0 | |
| 3.09 | 4.81 | 2.33 | 3.63 | 11.55 | 279.00 | 48.70 | 282.23 | 0.7554 | -675.1 | -487.2 | |
| 0.00 | 0.64 | 0.00 | 0.47 | 12.23 | 277.61 | 47.32 | 283.33 | 0.7406 | -518.0 | -474.1 | |
| 0.00 | 1.00 | 0.00 | 0.72 | 12.17 | 276.28 | 45.98 | 283.44 | 0.7251 | 541.0 | 479.7 | |
| 0.00 | 1.63 | 0.00 | 1.13 | 14.49 | 273.77 | 43.48 | 287.17 | 0.6996 | 545.0 | 503.6 | |
| 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. | |