| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.72 | 10.29 | 1.78 | 23.27 | -21.16 | 251.19 | 73.77 | 246.60 | 0.9761 | -178.0 | -124.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-08 01:00:39 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 | 0.81 | 0.00 | 2.03 | -20.46 | 252.75 | 75.33 | 247.62 | 0.9811 | -200.0 | -60.8 | |
| 0.72 | 4.34 | 1.78 | 10.71 | -21.02 | 252.40 | 74.98 | 246.99 | 0.9804 | 71.5 | 44.7 | |
| 0.00 | 1.26 | 0.00 | 3.20 | -21.32 | 252.71 | 75.29 | 246.75 | 0.9816 | -204.0 | -135.8 | |
| 0.00 | 0.81 | 0.00 | 1.59 | -20.65 | 249.05 | 71.63 | 246.69 | 0.9681 | -162.0 | -113.0 | |
| 0.00 | 3.07 | 0.00 | 5.74 | -21.72 | 248.13 | 70.71 | 245.41 | 0.9655 | -590.0 | -407.8 | |
| 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. | |