SDO HMI 2014-04-23 20:00:35 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 |
| 0.00 | 16.87 | 0.00 | 9.31 | -20.18 | 163.57 | 21.06 | 232.02 | 0.4339 | -623.5 | -483.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-23 20:00:35 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 | 1.07 | 0.00 | 0.64 | -27.37 | 170.74 | 28.22 | 227.02 | 0.5762 | -515.0 | -404.3 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -18.89 | 168.05 | 25.54 | 238.52 | 0.4802 | -771.0 | -577.7 | |
| 0.00 | 1.24 | 0.00 | 0.69 | -15.32 | 167.43 | 24.92 | 245.09 | 0.4499 | -598.0 | -440.1 | |
| 0.00 | 3.37 | 0.00 | 1.98 | -27.65 | 166.45 | 23.94 | 222.42 | 0.5349 | -33.0 | -130.3 | |
| 0.00 | 0.53 | 0.00 | 0.29 | -19.50 | 162.02 | 19.51 | 230.77 | 0.4080 | -600.0 | -446.3 | |
| 0.00 | 1.15 | 0.00 | 0.62 | -16.95 | 161.26 | 18.75 | 235.25 | 0.3758 | -702.0 | -575.7 | |
| 0.00 | 1.07 | 0.00 | 0.56 | -11.12 | 160.74 | 18.23 | 249.82 | 0.3285 | -774.0 | -640.2 | |
| 0.00 | 3.11 | 0.00 | 1.66 | -17.95 | 160.66 | 18.15 | 232.17 | 0.3768 | -641.0 | -641.6 | |
| 0.00 | 0.62 | 0.00 | 0.33 | -18.86 | 160.36 | 17.85 | 229.77 | 0.3815 | -734.0 | -628.3 | |
| 0.00 | 2.58 | 0.00 | 1.37 | -18.09 | 160.11 | 17.60 | 231.07 | 0.3711 | -770.0 | -663.2 | |
| 0.00 | 0.98 | 0.00 | 0.52 | -18.37 | 160.11 | 17.59 | 230.45 | 0.3736 | -721.0 | -534.5 | |
| 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. | |