| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.97 | 78.01 | 20.96 | 81.02 | -23.26 | 114.03 | 60.69 | 245.74 | 0.8804 | 460.1 | 167.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-30 14:00:36 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 |
| 2.59 | 7.40 | 2.73 | 7.84 | -21.99 | 114.80 | 61.47 | 247.30 | 0.8849 | -211.9 | 212.7 | |
| 17.38 | 63.21 | 18.23 | 66.30 | -23.25 | 114.39 | 61.05 | 245.83 | 0.8832 | 698.1 | 213.2 | |
| 0.00 | 0.62 | 0.00 | 0.62 | -22.96 | 112.71 | 59.37 | 245.90 | 0.8700 | 514.0 | 435.9 | |
| 0.00 | 0.98 | 0.00 | 1.02 | -25.06 | 113.66 | 60.32 | 243.68 | 0.8800 | 480.0 | 422.6 | |
| 0.00 | 0.45 | 0.00 | 0.41 | -22.21 | 109.67 | 56.33 | 246.25 | 0.8439 | -450.0 | -398.8 | |
| 0.00 | 3.39 | 0.00 | 3.07 | -25.16 | 108.57 | 55.23 | 242.56 | 0.8399 | -639.0 | -488.9 | |
| 0.00 | 1.96 | 0.00 | 1.76 | -25.46 | 108.07 | 54.73 | 242.10 | 0.8362 | -109.0 | -167.4 | |
| 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. | |