SDO HMI 2011-08-29 21:59:08 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 |
| 16.66 | 74.72 | 16.63 | 75.34 | -20.37 | 259.38 | -54.82 | 118.31 | 0.8723 | 382.1 | 44.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-29 21:59:08 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 |
| 3.40 | 21.59 | 3.35 | 21.08 | -20.46 | 260.31 | -53.89 | 118.77 | 0.8655 | 601.1 | 614.9 | |
| 12.27 | 22.75 | 12.27 | 22.79 | -20.98 | 259.87 | -54.33 | 119.15 | 0.8705 | 596.3 | 220.9 | |
| 0.00 | 4.12 | 0.00 | 4.18 | -21.46 | 259.49 | -54.71 | 119.51 | 0.8748 | -321.0 | -226.8 | |
| 0.00 | 1.52 | 0.00 | 1.56 | -20.59 | 258.84 | -55.36 | 118.32 | 0.8769 | 308.0 | 191.3 | |
| 0.00 | 0.90 | 0.00 | 0.93 | -20.98 | 258.33 | -55.87 | 118.55 | 0.8818 | 239.0 | 242.3 | |
| 0.99 | 21.14 | 1.01 | 21.93 | -19.54 | 258.37 | -55.83 | 117.02 | 0.8773 | 169.5 | -431.0 | |
| 0.00 | 0.99 | 0.00 | 1.03 | -19.62 | 257.57 | -56.63 | 116.82 | 0.8834 | -363.0 | -415.0 | |
| 0.00 | 0.90 | 0.00 | 0.98 | -19.64 | 256.24 | -57.96 | 116.36 | 0.8929 | -318.0 | -382.6 | |
| 0.00 | 0.81 | 0.00 | 0.86 | -18.86 | 256.61 | -57.59 | 115.67 | 0.8883 | -399.0 | -468.9 | |
| 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. | |