SDO HMI 2011-05-01 08:59:07 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 |
| 12.57 | 116.25 | 37.08 | 358.87 | 20.52 | 186.86 | 78.09 | 291.71 | 0.9843 | 368.7 | 10.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-01 08:59:07 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 |
| 2.14 | 20.07 | 13.76 | 128.59 | 20.05 | 192.68 | 83.91 | 290.50 | 0.9976 | 531.7 | 7.3 | |
| 0.00 | 3.39 | 0.00 | 9.92 | 19.69 | 186.93 | 78.17 | 290.80 | 0.9865 | -277.0 | -134.6 | |
| 1.07 | 86.36 | 2.54 | 204.58 | 20.74 | 184.28 | 75.51 | 292.23 | 0.9791 | -146.8 | 34.2 | |
| 5.26 | -3.00 | 11.95 | -3.00 | 20.66 | 183.65 | 74.88 | 292.25 | 0.9770 | 390.7 | 999999 | |
| 0.00 | 0.98 | 0.00 | 2.43 | 21.87 | 184.58 | 75.81 | 293.33 | 0.9807 | -329.0 | -295.5 | |
| 4.10 | -3.00 | 8.83 | -3.00 | 20.82 | 182.77 | 74.01 | 292.56 | 0.9740 | 517.8 | 999999 | |
| 0.00 | 1.52 | 0.00 | 3.82 | 22.24 | 184.64 | 75.87 | 293.69 | 0.9811 | -404.0 | -346.5 | |
| 0.00 | 3.93 | 0.00 | 9.53 | 22.18 | 184.27 | 75.51 | 293.69 | 0.9799 | -28.0 | -39.2 | |
| 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. | |