SDO HMI 2011-02-24 18:58:58 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 |
| 4.13 | 24.33 | 9.76 | 58.13 | 16.02 | 178.52 | -75.36 | 71.90 | 0.9793 | 290.3 | 218.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-24 18:58:58 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 | 0.86 | 0.00 | 2.04 | 16.57 | 178.70 | -75.18 | 71.32 | 0.9791 | 388.0 | 372.8 | |
| 0.00 | 1.20 | 0.00 | 3.11 | 17.22 | 177.78 | -76.10 | 70.84 | 0.9825 | -293.0 | -161.9 | |
| 0.00 | 2.24 | 0.00 | 5.12 | 15.98 | 179.11 | -74.77 | 71.83 | 0.9773 | 403.0 | 379.1 | |
| 0.00 | 2.06 | 0.00 | 4.59 | 15.43 | 179.44 | -74.45 | 72.31 | 0.9757 | 442.0 | 406.2 | |
| 0.00 | 3.70 | 0.00 | 9.61 | 16.92 | 177.63 | -76.25 | 71.16 | 0.9827 | -128.0 | -53.2 | |
| 0.00 | 0.77 | 0.00 | 1.77 | 15.70 | 179.04 | -74.84 | 72.12 | 0.9773 | 461.0 | 406.1 | |
| 1.72 | 5.59 | 4.29 | 13.85 | 16.36 | 178.05 | -75.83 | 71.64 | 0.9811 | 377.7 | 396.5 | |
| 0.00 | 1.12 | 0.00 | 2.58 | 15.47 | 178.93 | -74.95 | 72.38 | 0.9776 | 306.0 | 286.5 | |
| 2.41 | 5.59 | 5.47 | 12.65 | 15.20 | 179.09 | -74.79 | 72.62 | 0.9768 | 398.9 | 321.8 | |
| 0.00 | 1.20 | 0.00 | 2.81 | 14.99 | 178.69 | -75.19 | 72.90 | 0.9781 | -225.0 | -188.9 | |
| 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. | |