SDO HMI 2011-08-11 14:59:10 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 | 10.27 | 0.00 | 5.39 | 17.26 | 180.32 | -15.64 | 53.31 | 0.3231 | -835.4 | -645.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 14:59:10 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 | 0.54 | 0.00 | 0.28 | 16.38 | 183.12 | -12.84 | 50.54 | 0.2773 | -741.0 | -505.7 | |
| 0.00 | 1.80 | 0.00 | 0.94 | 16.42 | 181.16 | -14.80 | 54.14 | 0.3036 | -996.0 | -785.2 | |
| 0.00 | 0.90 | 0.00 | 0.47 | 18.67 | 180.68 | -15.28 | 49.17 | 0.3315 | -807.0 | -671.6 | |
| 0.00 | 1.62 | 0.00 | 0.85 | 18.39 | 180.60 | -15.36 | 49.98 | 0.3296 | -889.0 | -710.9 | |
| 0.00 | 1.53 | 0.00 | 0.80 | 15.48 | 180.68 | -15.28 | 57.60 | 0.3021 | -982.0 | -797.2 | |
| 0.00 | 2.17 | 0.00 | 1.14 | 18.56 | 180.15 | -15.81 | 50.32 | 0.3370 | -782.0 | -559.9 | |
| 0.00 | 1.71 | 0.00 | 0.91 | 16.54 | 178.02 | -17.94 | 58.53 | 0.3478 | -651.0 | -441.5 | |
| 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. | |