SDO HMI 2011-10-12 16:59:02 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 |
| 91.90 | 528.00 | 51.95 | 298.61 | 23.12 | 120.22 | 24.08 | 308.82 | 0.4835 | -1468.2 | -425.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-12 16:59:02 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 |
| 1.22 | 2.27 | 0.69 | 1.29 | 21.43 | 121.40 | 25.25 | 304.63 | 0.4846 | 589.9 | 517.2 | |
| 89.98 | 521.62 | 50.87 | 295.01 | 23.10 | 120.25 | 24.11 | 308.74 | 0.4836 | -1591.7 | -429.3 | |
| 0.70 | -2.00 | 0.39 | -2.00 | 23.82 | 119.50 | 23.35 | 310.79 | 0.4809 | -653.9 | 999999 | |
| 0.00 | 1.40 | 0.00 | 0.79 | 25.49 | 118.22 | 22.07 | 315.03 | 0.4819 | -694.0 | -635.9 | |
| 0.00 | 1.49 | 0.00 | 0.84 | 25.31 | 117.86 | 21.71 | 315.16 | 0.4763 | -788.0 | -580.4 | |
| 0.00 | 1.22 | 0.00 | 0.68 | 25.63 | 115.06 | 18.91 | 319.33 | 0.4502 | 807.0 | 650.3 | |
| 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. | |