SDO HMI 2014-08-18 10:00:38 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 |
| 13.78 | 77.10 | 20.60 | 116.23 | -9.58 | 331.21 | -69.08 | 102.66 | 0.9453 | 234.1 | 89.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-18 10:00:38 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 | 0.27 | 0.00 | 0.39 | -13.13 | 333.04 | -67.25 | 106.73 | 0.9393 | -346.0 | -347.3 | |
| 0.00 | 0.81 | 0.00 | 1.10 | -10.46 | 333.74 | -66.55 | 104.09 | 0.9317 | 197.0 | 212.0 | |
| 0.00 | 0.90 | 0.00 | 1.32 | -10.29 | 331.85 | -68.44 | 103.52 | 0.9426 | -102.0 | -68.7 | |
| 11.26 | 72.06 | 16.71 | 108.15 | -9.52 | 331.43 | -68.86 | 102.64 | 0.9441 | 402.0 | 107.7 | |
| 0.00 | 0.54 | 0.00 | 0.87 | -11.27 | 330.10 | -70.18 | 104.19 | 0.9530 | 140.0 | 177.5 | |
| 2.52 | -4.00 | 3.89 | -4.00 | -9.42 | 330.69 | -69.60 | 102.39 | 0.9481 | 166.8 | 999999 | |
| 0.00 | 0.81 | 0.00 | 1.39 | -10.93 | 328.97 | -71.32 | 103.62 | 0.9583 | -256.0 | -212.7 | |
| 0.00 | 1.08 | 0.00 | 1.89 | -10.77 | 328.47 | -71.82 | 103.36 | 0.9606 | -365.0 | -313.0 | |
| 0.00 | 0.63 | 0.00 | 1.12 | -8.88 | 327.98 | -72.31 | 101.34 | 0.9613 | -174.0 | -161.0 | |
| 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. | |