SDO HMI 2011-08-24 08:59:09 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 | 15.02 | 0.00 | 8.56 | 18.74 | 359.56 | -27.88 | 63.67 | 0.4952 | -522.2 | -418.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-24 08:59:09 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 | 0.99 | 0.00 | 0.54 | 18.42 | 3.53 | -23.91 | 61.61 | 0.4390 | -811.0 | -562.5 | |
| 0.00 | 1.98 | 0.00 | 1.11 | 20.54 | 1.76 | -25.68 | 58.83 | 0.4762 | -834.0 | -580.5 | |
| 0.00 | 1.26 | 0.00 | 0.70 | 17.33 | 1.65 | -25.79 | 65.31 | 0.4589 | -853.0 | -664.4 | |
| 0.00 | 3.68 | 0.00 | 2.07 | 18.39 | 1.16 | -26.27 | 63.49 | 0.4713 | -978.0 | -803.9 | |
| 0.00 | 1.35 | 0.00 | 0.76 | 19.51 | 0.58 | -26.86 | 61.73 | 0.4855 | -755.0 | -537.9 | |
| 0.00 | 2.52 | 0.00 | 1.43 | 19.09 | 0.22 | -27.22 | 62.80 | 0.4880 | -1037.0 | -723.3 | |
| 0.00 | 2.07 | 0.00 | 1.24 | 17.99 | 354.32 | -33.12 | 68.04 | 0.5625 | 690.0 | 520.7 | |
| 0.00 | 1.17 | 0.00 | 0.71 | 18.38 | 353.08 | -34.36 | 67.90 | 0.5802 | 400.0 | 420.9 | |
| 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. | |