SDO HMI 2012-05-09 20:59:08 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 | 10.20 | 0.00 | 5.82 | 16.49 | 227.40 | 21.78 | 313.60 | 0.4945 | 108.9 | 30.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2012-05-09 20:59:08 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 | 1.70 | 0.00 | 1.01 | 12.96 | 235.04 | 29.43 | 299.55 | 0.5526 | -698.0 | -531.9 | |
| 0.00 | 1.97 | 0.00 | 1.12 | 13.60 | 229.54 | 23.93 | 305.83 | 0.4882 | -673.0 | -521.7 | |
| 0.00 | 1.07 | 0.00 | 0.63 | 19.39 | 229.79 | 24.18 | 314.51 | 0.5439 | -700.0 | -552.1 | |
| 0.00 | 0.54 | 0.00 | 0.30 | 16.27 | 225.14 | 19.52 | 315.86 | 0.4625 | 549.0 | 352.2 | |
| 0.00 | 1.61 | 0.00 | 0.90 | 18.41 | 223.69 | 18.07 | 321.19 | 0.4716 | 672.0 | 483.4 | |
| 0.00 | 1.43 | 0.00 | 0.81 | 18.96 | 223.51 | 17.90 | 322.22 | 0.4764 | 712.0 | 509.9 | |
| 0.00 | 1.88 | 0.00 | 1.05 | 17.72 | 223.15 | 17.53 | 321.04 | 0.4583 | 900.0 | 661.8 | |
| 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. | |