SDO HMI 2011-08-13 01:59:10 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 |
| 8.48 | 15.06 | 5.79 | 10.23 | 23.46 | 135.39 | -41.27 | 62.27 | 0.6850 | -130.5 | -250.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-13 01:59:10 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 |
| 2.80 | 10.01 | 1.85 | 6.62 | 23.36 | 137.36 | -39.30 | 61.70 | 0.6627 | -819.5 | -657.6 | |
| 1.08 | -1.00 | 0.72 | -1.00 | 23.54 | 137.25 | -39.41 | 61.48 | 0.6647 | -926.1 | 999999 | |
| 1.62 | -1.00 | 1.08 | -1.00 | 23.50 | 137.09 | -39.57 | 61.61 | 0.6663 | -679.0 | 999999 | |
| 0.00 | 1.89 | 0.00 | 1.34 | 22.90 | 132.47 | -44.19 | 64.12 | 0.7160 | 656.0 | 577.2 | |
| 2.98 | 3.16 | 2.14 | 2.27 | 23.87 | 131.68 | -44.98 | 63.06 | 0.7274 | 642.2 | 563.0 | |
| 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. | |