| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.64 | 16.64 | 5.61 | 16.65 | -19.47 | 109.59 | 58.11 | 247.15 | 0.8701 | 221.2 | 209.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 17:00:25 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 |
| 0.94 | 2.56 | 1.01 | 2.75 | -20.27 | 111.83 | 60.36 | 246.77 | 0.8892 | 322.1 | 238.9 | |
| 1.88 | 3.33 | 1.99 | 3.53 | -20.17 | 111.39 | 59.91 | 246.78 | 0.8857 | 442.9 | 351.5 | |
| 0.00 | 0.26 | 0.00 | 0.26 | -19.56 | 110.33 | 58.85 | 247.23 | 0.8767 | 392.0 | 349.0 | |
| 0.00 | 1.19 | 0.00 | 1.25 | -20.60 | 110.91 | 59.44 | 246.19 | 0.8829 | 436.0 | 404.9 | |
| 0.00 | 1.19 | 0.00 | 1.23 | -20.10 | 110.59 | 59.12 | 246.68 | 0.8796 | 549.0 | 471.2 | |
| 0.00 | 0.68 | 0.00 | 0.67 | -17.89 | 109.17 | 57.70 | 248.85 | 0.8645 | 206.0 | 304.8 | |
| 0.00 | 1.37 | 0.00 | 1.32 | -17.85 | 108.69 | 57.21 | 248.78 | 0.8605 | 417.0 | 416.6 | |
| 0.00 | 0.68 | 0.00 | 0.67 | -18.48 | 108.90 | 57.42 | 248.12 | 0.8633 | 413.0 | 377.0 | |
| 1.28 | 2.73 | 1.19 | 2.53 | -18.00 | 107.18 | 55.70 | 248.27 | 0.8479 | -495.7 | -379.8 | |
| 1.54 | 2.65 | 1.42 | 2.44 | -19.75 | 106.49 | 55.02 | 246.08 | 0.8458 | -325.2 | -310.2 | |
| 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. | |