SDO HMI 2011-01-03 23:58:55 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.76 | 0.00 | 3.16 | -27.14 | 207.17 | -8.67 | 161.86 | 0.4290 | 433.0 | 302.3 | |
|
previous
observation for the same group /
back to the solar disc SDO HMI 2011-01-03 23:58:55 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 | 1.02 | 0.00 | 0.55 | -25.96 | 210.04 | -5.81 | 166.71 | 0.3974 | 745.0 | 659.0 | |
| 0.00 | 0.76 | 0.00 | 0.42 | -27.46 | 208.15 | -7.69 | 163.82 | 0.4280 | 677.0 | 605.3 | |
| 0.00 | 1.44 | 0.00 | 0.79 | -27.13 | 207.97 | -7.87 | 163.23 | 0.4239 | 904.0 | 745.2 | |
| 0.00 | 1.10 | 0.00 | 0.60 | -27.36 | 207.86 | -7.98 | 163.17 | 0.4279 | 655.0 | 511.0 | |
| 0.00 | 1.44 | 0.00 | 0.80 | -27.64 | 203.37 | -12.47 | 155.15 | 0.4570 | -816.0 | -691.8 | |
| 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. | |