SDO HMI 2011-10-16 13:59:01 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 |
| 3.75 | 13.09 | 6.04 | 21.86 | 24.30 | 331.39 | -73.65 | 66.32 | 0.9558 | -63.9 | -61.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-16 13:59:01 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 | 2.27 | 0.00 | 3.78 | 24.92 | 331.50 | -73.54 | 65.67 | 0.9558 | 67.0 | 139.7 | |
| 2.27 | 2.97 | 3.44 | 4.49 | 23.47 | 333.39 | -71.65 | 67.14 | 0.9463 | -224.0 | -282.9 | |
| 0.00 | 2.18 | 0.00 | 3.61 | 24.73 | 331.56 | -73.47 | 65.86 | 0.9555 | -27.0 | -5.6 | |
| 0.00 | 0.61 | 0.00 | 1.24 | 26.40 | 327.95 | -77.09 | 64.19 | 0.9709 | 160.0 | 170.1 | |
| 1.48 | 1.83 | 2.60 | 3.22 | 24.53 | 330.44 | -74.60 | 66.10 | 0.9606 | 330.9 | 368.5 | |
| 0.00 | 0.70 | 0.00 | 1.51 | 26.14 | 326.96 | -78.07 | 64.47 | 0.9745 | -105.0 | -5.1 | |
| 0.00 | 1.31 | 0.00 | 2.08 | 22.85 | 332.28 | -72.75 | 67.82 | 0.9518 | -550.0 | -426.8 | |
| 0.00 | 1.22 | 0.00 | 1.93 | 22.61 | 332.49 | -72.54 | 68.07 | 0.9507 | -404.0 | -371.9 | |
| 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. | |