| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 3.31 | 18.11 | 10.20 | 49.41 | -16.85 | 328.09 | 80.94 | 254.06 | 0.9820 | -161.7 | -151.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-19 15:00:30 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 |
| 3.31 | 12.02 | 10.20 | 37.83 | -16.57 | 329.53 | 82.38 | 254.28 | 0.9877 | -195.3 | -219.8 | |
| 0.00 | 0.35 | 0.00 | 1.04 | -16.98 | 329.26 | 82.11 | 253.89 | 0.9869 | -8.0 | 8.8 | |
| 0.00 | 2.61 | 0.00 | 6.18 | -16.39 | 326.56 | 79.41 | 254.68 | 0.9787 | 229.0 | 176.8 | |
| 0.00 | 3.13 | 0.00 | 4.36 | -19.90 | 317.48 | 70.33 | 251.35 | 0.9360 | -364.0 | -224.6 | |
| 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. | |