SDO HMI 2011-08-11 07:59:10 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 |
| 17.43 | 34.21 | 11.12 | 21.83 | -21.88 | 172.54 | -27.27 | 137.56 | 0.6304 | 42.7 | 25.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 07:59:10 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 |
| 0.00 | 1.08 | 0.00 | 0.65 | -18.56 | 175.79 | -24.02 | 136.97 | 0.5676 | 735.0 | 573.2 | |
| 0.00 | 1.26 | 0.00 | 0.76 | -18.64 | 175.57 | -24.24 | 136.81 | 0.5705 | 674.0 | 521.1 | |
| 7.31 | 12.91 | 4.55 | 8.03 | -21.20 | 174.50 | -25.31 | 138.70 | 0.6062 | 910.4 | 562.5 | |
| 8.40 | 12.64 | 5.38 | 8.10 | -22.64 | 172.71 | -27.10 | 138.45 | 0.6362 | -877.0 | -710.6 | |
| 0.00 | 2.08 | 0.00 | 1.34 | -22.99 | 172.53 | -27.29 | 138.66 | 0.6412 | -671.0 | -441.8 | |
| 0.00 | 0.90 | 0.00 | 0.62 | -22.47 | 165.82 | -33.99 | 132.02 | 0.6977 | 376.0 | 318.5 | |
| 1.72 | 2.35 | 1.19 | 1.62 | -22.49 | 165.54 | -34.28 | 131.82 | 0.7005 | 622.8 | 474.6 | |
| 0.00 | 0.99 | 0.00 | 0.71 | -23.28 | 164.05 | -35.76 | 131.57 | 0.7199 | -591.0 | -491.5 | |
| 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. | |