| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.89 | 95.48 | 25.11 | 120.81 | -9.48 | 331.29 | -65.13 | 103.36 | 0.9213 | 458.1 | 100.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-18 17:00:38 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 |
| 0.00 | 0.27 | 0.00 | 0.28 | -9.84 | 337.32 | -59.11 | 105.18 | 0.8781 | 457.0 | 393.7 | |
| 0.00 | 1.26 | 0.00 | 1.31 | -9.33 | 336.79 | -59.63 | 104.48 | 0.8813 | 492.0 | 396.6 | |
| 15.39 | 91.61 | 19.29 | 115.95 | -9.49 | 331.46 | -64.96 | 103.41 | 0.9203 | 554.3 | 101.1 | |
| 4.50 | -3.00 | 5.82 | -3.00 | -9.39 | 330.68 | -65.74 | 103.13 | 0.9253 | 304.3 | 999999 | |
| 0.00 | 1.08 | 0.00 | 1.45 | -8.84 | 329.73 | -66.70 | 102.35 | 0.9306 | 290.0 | 246.4 | |
| 0.00 | 1.26 | 0.00 | 1.82 | -10.80 | 328.41 | -68.01 | 104.15 | 0.9408 | -366.0 | -294.4 | |
| 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. | |