SDO HMI 2011-08-22 10:59:09 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 |
| 23.65 | 53.42 | 20.17 | 44.67 | 18.82 | 359.08 | -53.68 | 71.54 | 0.8013 | -464.1 | -289.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-22 10:59:09 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 |
| 8.27 | 21.13 | 6.44 | 16.40 | 18.87 | 2.26 | -50.50 | 71.21 | 0.7736 | -747.9 | -575.1 | |
| 0.00 | 0.90 | 0.00 | 0.69 | 17.21 | 2.62 | -50.15 | 73.31 | 0.7679 | -521.0 | -437.4 | |
| 12.05 | 24.46 | 9.54 | 19.43 | 18.73 | 1.40 | -51.36 | 71.51 | 0.7823 | -671.1 | -139.1 | |
| 0.00 | 1.17 | 0.00 | 0.94 | 16.78 | 0.65 | -52.12 | 74.07 | 0.7881 | -645.0 | -501.7 | |
| 0.00 | 1.08 | 0.00 | 1.33 | 19.52 | 345.39 | -67.38 | 71.68 | 0.9181 | 268.0 | 233.2 | |
| 3.33 | 4.68 | 4.19 | 5.88 | 19.32 | 344.97 | -67.80 | 71.91 | 0.9208 | 325.4 | 276.6 | |
| 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. | |