SDO HMI 2014-03-31 20:00:31 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 |
| 5.53 | 21.39 | 3.32 | 12.76 | -23.98 | 116.37 | 30.23 | 235.68 | 0.5590 | -11.4 | 41.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 20:00:31 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 |
| 4.65 | 7.98 | 2.80 | 4.82 | -23.58 | 117.82 | 31.68 | 237.37 | 0.5737 | 845.1 | 623.4 | |
| 0.00 | 1.32 | 0.00 | 0.79 | -23.67 | 117.35 | 31.20 | 236.91 | 0.5685 | 685.0 | 508.5 | |
| 0.00 | 1.75 | 0.00 | 1.05 | -24.13 | 117.08 | 30.94 | 236.00 | 0.5682 | 679.0 | 545.8 | |
| 0.00 | 2.10 | 0.00 | 1.26 | -23.80 | 116.77 | 30.62 | 236.31 | 0.5623 | 875.0 | 718.9 | |
| 0.00 | 1.05 | 0.00 | 0.62 | -24.07 | 115.89 | 29.74 | 235.24 | 0.5535 | -669.0 | -569.3 | |
| 0.00 | 1.05 | 0.00 | 0.62 | -24.45 | 115.16 | 29.01 | 234.05 | 0.5475 | -763.0 | -640.8 | |
| 0.00 | 0.88 | 0.00 | 0.52 | -24.37 | 114.98 | 28.84 | 234.06 | 0.5448 | -734.0 | -625.2 | |
| 0.88 | 2.37 | 0.52 | 1.39 | -24.41 | 114.77 | 28.62 | 233.82 | 0.5426 | -904.5 | -772.5 | |
| 0.00 | 1.40 | 0.00 | 0.82 | -24.39 | 113.83 | 27.69 | 233.08 | 0.5314 | -737.0 | -577.3 | |
| 0.00 | 0.70 | 0.00 | 0.41 | -24.68 | 113.08 | 26.94 | 231.95 | 0.5248 | -739.0 | -681.9 | |
| 0.00 | 0.79 | 0.00 | 0.46 | -24.91 | 113.02 | 26.88 | 231.53 | 0.5258 | -633.0 | -514.8 | |
| 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. | |