SDO HMI 2014-04-01 20:00:32 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 |
| 21.49 | 64.40 | 24.70 | 72.26 | -8.31 | 8.73 | -64.22 | 96.09 | 0.8968 | 238.9 | 144.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-01 20:00:32 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 |
| 2.98 | 50.18 | 3.10 | 53.18 | -8.66 | 10.91 | -62.04 | 96.34 | 0.8806 | 736.1 | 199.4 | |
| 0.00 | 1.23 | 0.00 | 1.28 | -8.37 | 10.73 | -62.22 | 96.02 | 0.8821 | 606.0 | 538.9 | |
| 12.28 | -1.00 | 13.02 | -1.00 | -8.60 | 10.27 | -62.68 | 96.30 | 0.8858 | 585.8 | 999999 | |
| 0.00 | 0.79 | 0.00 | 0.98 | -7.54 | 5.83 | -67.12 | 95.41 | 0.9191 | -114.0 | -197.2 | |
| 0.00 | 1.32 | 0.00 | 1.78 | -7.17 | 3.82 | -69.14 | 95.17 | 0.9325 | -504.0 | -352.1 | |
| 6.23 | 10.88 | 8.58 | 15.04 | -7.44 | 3.46 | -69.49 | 95.48 | 0.9346 | -382.3 | -57.9 | |
| 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. | |