SDO HMI 2014-03-30 17:00:31 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 |
| 25.14 | 51.36 | 13.52 | 27.61 | -24.05 | 116.26 | 15.27 | 218.36 | 0.3893 | 74.0 | 48.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 17:00:31 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 | 1.23 | 0.00 | 0.66 | -24.56 | 117.55 | 16.56 | 219.69 | 0.4077 | 649.0 | 523.0 | |
| 16.03 | 29.00 | 8.64 | 15.63 | -23.69 | 117.27 | 16.28 | 220.76 | 0.3948 | 1087.0 | 629.1 | |
| 0.00 | 1.23 | 0.00 | 0.66 | -23.94 | 116.21 | 15.22 | 218.52 | 0.3869 | -684.0 | -489.5 | |
| 0.00 | 1.84 | 0.00 | 0.99 | -23.79 | 115.82 | 14.83 | 218.09 | 0.3813 | -561.0 | -496.2 | |
| 0.00 | 1.23 | 0.00 | 0.66 | -23.98 | 115.67 | 14.68 | 217.49 | 0.3821 | -832.0 | -718.1 | |
| 0.00 | 2.98 | 0.00 | 1.60 | -24.34 | 115.28 | 14.28 | 216.15 | 0.3827 | -825.0 | -679.8 | |
| 9.11 | 12.97 | 4.88 | 6.94 | -24.77 | 114.44 | 13.45 | 213.89 | 0.3804 | -1008.4 | -678.9 | |
| 0.00 | 0.88 | 0.00 | 0.47 | -24.49 | 113.06 | 12.07 | 211.61 | 0.3646 | -772.0 | -626.0 | |
| 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. | |