| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.05 | 38.97 | 7.40 | 60.57 | -14.89 | 250.95 | -68.51 | 108.41 | 0.9484 | 256.2 | 76.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-20 19:00:34 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 |
| 5.05 | 31.00 | 7.40 | 45.41 | -15.27 | 252.27 | -67.19 | 109.08 | 0.9424 | 485.1 | 215.1 | |
| 0.00 | 0.53 | 0.00 | 0.79 | -14.15 | 251.76 | -67.70 | 107.80 | 0.9437 | 280.0 | 246.8 | |
| 0.00 | 1.33 | 0.00 | 2.47 | -14.47 | 247.52 | -71.94 | 107.20 | 0.9649 | -323.0 | -254.3 | |
| 0.00 | 1.06 | 0.00 | 2.21 | -14.83 | 245.81 | -73.65 | 107.23 | 0.9722 | -161.0 | -76.4 | |
| 0.00 | 5.05 | 0.00 | 9.69 | -13.32 | 246.76 | -72.70 | 105.89 | 0.9671 | -465.0 | -360.9 | |
| 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. | |