| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.73 | 0.00 | 11.09 | -9.69 | 357.50 | 64.78 | 262.54 | 0.8989 | 112.4 | 140.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-16 04:00:29 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 | 1.74 | 0.00 | 2.29 | -7.23 | 1.26 | 68.54 | 265.06 | 0.9283 | 434.0 | 408.8 | |
| 0.00 | 1.91 | 0.00 | 2.47 | -7.06 | 0.71 | 67.99 | 265.31 | 0.9248 | 461.0 | 411.0 | |
| 0.00 | 1.13 | 0.00 | 1.42 | -9.49 | 0.28 | 67.56 | 262.70 | 0.9208 | 315.0 | 255.5 | |
| 0.00 | 0.43 | 0.00 | 0.52 | -8.61 | 358.72 | 66.00 | 263.78 | 0.9103 | 442.0 | 396.8 | |
| 0.00 | 0.78 | 0.00 | 0.91 | -10.42 | 358.27 | 65.55 | 261.82 | 0.9063 | 379.0 | 255.4 | |
| 0.00 | 1.04 | 0.00 | 0.97 | -9.01 | 351.18 | 58.46 | 263.83 | 0.8488 | -471.0 | -391.1 | |
| 0.00 | 1.22 | 0.00 | 1.15 | -15.29 | 351.87 | 59.14 | 256.42 | 0.8540 | -182.0 | -212.0 | |
| 0.00 | 1.48 | 0.00 | 1.36 | -14.49 | 350.74 | 58.02 | 257.35 | 0.8438 | -479.0 | -417.2 | |
| 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. | |