| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.11 | 0.00 | 4.11 | 7.32 | 27.35 | -31.09 | 87.19 | 0.5145 | -291.0 | -343.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-17 01:00:38 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 | 1.62 | 0.00 | 0.90 | 6.32 | 31.29 | -27.15 | 89.29 | 0.4554 | -817.0 | -583.7 | |
| 0.00 | 1.53 | 0.00 | 0.87 | 5.80 | 28.47 | -29.97 | 90.08 | 0.4990 | -717.0 | -650.9 | |
| 0.00 | 1.53 | 0.00 | 0.88 | 6.34 | 28.19 | -30.25 | 88.99 | 0.5028 | -775.0 | -588.1 | |
| 0.00 | 0.90 | 0.00 | 0.52 | 9.42 | 26.76 | -31.68 | 82.96 | 0.5242 | -710.0 | -551.0 | |
| 0.00 | 0.36 | 0.00 | 0.22 | 8.90 | 23.79 | -34.65 | 84.08 | 0.5669 | 714.0 | 674.8 | |
| 0.00 | 1.17 | 0.00 | 0.72 | 9.63 | 21.58 | -36.86 | 82.90 | 0.5982 | 559.0 | 471.2 | |
| 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. | |