| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 4.13 | 0.00 | 2.67 | 16.82 | 89.43 | 32.98 | 305.91 | 0.6456 | -303.2 | -334.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-03 02:00:32 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 | 0.97 | 0.00 | 0.64 | 17.95 | 90.25 | 33.80 | 306.74 | 0.6627 | -539.0 | -460.9 | |
| 0.00 | 1.14 | 0.00 | 0.74 | 16.39 | 89.81 | 33.36 | 305.07 | 0.6469 | -636.0 | -518.8 | |
| 0.00 | 1.32 | 0.00 | 0.86 | 17.90 | 89.60 | 33.15 | 307.20 | 0.6555 | -568.0 | -474.8 | |
| 0.00 | 0.70 | 0.00 | 0.43 | 13.72 | 87.19 | 30.74 | 303.57 | 0.5982 | 530.0 | 443.6 | |
| 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. | |