SDO HMI 2011-10-12 11:59:02 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 |
| 99.15 | 539.05 | 55.02 | 299.26 | 23.13 | 120.32 | 21.42 | 311.78 | 0.4524 | -1361.3 | -410.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-12 11:59:02 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 | 2.10 | 0.00 | 1.17 | 21.65 | 122.01 | 23.11 | 307.16 | 0.4596 | 641.0 | 462.5 | |
| 97.31 | 531.35 | 54.00 | 294.98 | 23.09 | 120.36 | 21.46 | 311.66 | 0.4524 | -1459.8 | -411.9 | |
| 0.53 | -2.00 | 0.29 | -2.00 | 23.68 | 119.69 | 20.79 | 313.53 | 0.4503 | -987.5 | 999999 | |
| 1.31 | -2.00 | 0.73 | -2.00 | 23.87 | 119.65 | 20.75 | 313.91 | 0.4517 | -718.9 | 999999 | |
| 0.00 | 0.96 | 0.00 | 0.54 | 26.29 | 118.66 | 19.76 | 319.19 | 0.4658 | -725.0 | -549.4 | |
| 0.00 | 1.93 | 0.00 | 1.07 | 25.69 | 118.38 | 19.48 | 318.62 | 0.4566 | -781.0 | -581.8 | |
| 0.00 | 1.05 | 0.00 | 0.58 | 25.88 | 118.24 | 19.34 | 319.13 | 0.4573 | -702.0 | -570.9 | |
| 0.00 | 1.66 | 0.00 | 0.92 | 25.22 | 118.06 | 19.16 | 318.31 | 0.4483 | -868.0 | -720.4 | |
| 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. | |