SDO HMI 2014-05-20 14:00:38 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 |
| 36.44 | 96.98 | 27.15 | 73.22 | -17.65 | 196.17 | 47.28 | 248.22 | 0.7558 | 164.1 | 103.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 14:00:38 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 |
| 17.27 | 70.08 | 13.34 | 54.10 | -18.33 | 197.27 | 48.38 | 247.66 | 0.7696 | 846.1 | 233.4 | |
| 3.24 | -1.00 | 2.48 | -1.00 | -17.83 | 196.95 | 48.06 | 248.20 | 0.7649 | 794.6 | 999999 | |
| 0.27 | -1.00 | 0.21 | -1.00 | -18.05 | 196.88 | 47.99 | 247.90 | 0.7648 | 854.7 | 999999 | |
| 0.81 | 2.07 | 0.58 | 1.49 | -16.07 | 193.88 | 44.99 | 249.62 | 0.7270 | -459.3 | -353.6 | |
| 0.00 | 0.90 | 0.00 | 0.64 | -16.14 | 193.68 | 44.79 | 249.47 | 0.7249 | -506.0 | -430.6 | |
| 4.68 | 8.46 | 3.34 | 6.03 | -16.30 | 193.32 | 44.43 | 249.14 | 0.7214 | -748.1 | -570.4 | |
| 10.17 | 15.47 | 7.20 | 10.96 | -15.81 | 193.09 | 44.21 | 249.74 | 0.7174 | -866.2 | -527.3 | |
| 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. | |