SDO HMI 2011-08-11 15:59:10 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 |
| 0.00 | 9.74 | 0.00 | 5.07 | 17.33 | 181.09 | -14.31 | 50.86 | 0.3061 | -871.0 | -681.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 15:59:10 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 | 1.53 | 0.00 | 0.79 | 16.45 | 183.18 | -12.22 | 49.00 | 0.2703 | -716.0 | -528.8 | |
| 0.00 | 2.26 | 0.00 | 1.17 | 16.47 | 181.16 | -14.24 | 53.03 | 0.2966 | -946.0 | -707.7 | |
| 0.00 | 1.08 | 0.00 | 0.57 | 18.65 | 180.69 | -14.72 | 48.20 | 0.3243 | -890.0 | -606.5 | |
| 0.00 | 2.17 | 0.00 | 1.13 | 18.40 | 180.61 | -14.80 | 48.95 | 0.3227 | -904.0 | -747.8 | |
| 0.00 | 1.26 | 0.00 | 0.65 | 15.47 | 180.68 | -14.72 | 56.75 | 0.2942 | -961.0 | -857.8 | |
| 0.00 | 1.44 | 0.00 | 0.76 | 18.58 | 180.20 | -15.21 | 49.26 | 0.3296 | -809.0 | -604.9 | |
| 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. | |