SDO HMI 2014-03-31 18:00:31 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 |
| 6.83 | 24.72 | 4.08 | 14.63 | -23.98 | 116.51 | 29.26 | 234.94 | 0.5474 | 81.6 | -40.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-31 18:00:31 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 | 0.88 | 0.00 | 0.55 | -26.16 | 120.55 | 33.30 | 234.45 | 0.6079 | 545.0 | 462.2 | |
| 6.22 | 8.85 | 3.72 | 5.29 | -23.58 | 117.78 | 30.53 | 236.59 | 0.5599 | 888.5 | 650.5 | |
| 0.00 | 1.05 | 0.00 | 0.63 | -23.67 | 117.38 | 30.13 | 236.17 | 0.5557 | 794.0 | 700.1 | |
| 0.00 | 1.14 | 0.00 | 0.68 | -24.16 | 117.09 | 29.84 | 235.16 | 0.5553 | 701.0 | 583.3 | |
| 0.00 | 2.63 | 0.00 | 1.56 | -23.83 | 116.74 | 29.49 | 235.44 | 0.5490 | 840.0 | 709.8 | |
| 0.00 | 1.93 | 0.00 | 1.13 | -23.05 | 116.55 | 29.30 | 236.58 | 0.5417 | -666.0 | -474.8 | |
| 0.00 | 2.19 | 0.00 | 1.28 | -24.36 | 115.00 | 27.75 | 233.19 | 0.5320 | -756.0 | -646.8 | |
| 0.00 | 0.61 | 0.00 | 0.36 | -24.49 | 114.96 | 27.71 | 232.94 | 0.5324 | -693.0 | -621.7 | |
| 0.61 | 3.07 | 0.36 | 1.79 | -24.44 | 114.72 | 27.47 | 232.82 | 0.5292 | -976.9 | -815.8 | |
| 0.00 | 0.79 | 0.00 | 0.45 | -24.48 | 113.18 | 25.94 | 231.38 | 0.5115 | -696.0 | -565.3 | |
| 0.00 | 1.58 | 0.00 | 0.91 | -24.67 | 113.04 | 25.80 | 230.92 | 0.5114 | -897.0 | -691.2 | |
| 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. | |