| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.53 | 0.00 | 2.38 | -17.01 | 118.38 | 8.18 | 204.47 | 0.3302 | -823.2 | -687.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-05 05:58:56 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 | 0.77 | 0.00 | 0.41 | -17.90 | 119.80 | 9.59 | 206.81 | 0.3530 | -750.0 | -626.0 | |
| 0.00 | 1.02 | 0.00 | 0.54 | -17.71 | 118.97 | 8.76 | 205.04 | 0.3443 | -629.0 | -519.2 | |
| 0.00 | 1.37 | 0.00 | 0.71 | -15.36 | 118.28 | 8.07 | 206.50 | 0.3046 | -1015.0 | -809.1 | |
| 0.00 | 1.37 | 0.00 | 0.72 | -17.61 | 117.24 | 7.04 | 200.70 | 0.3318 | -899.0 | -727.9 | |
| 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. | |