SDO HMI 2014-04-07 08:00:33 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 |
| 0.35 | 11.81 | 0.18 | 6.09 | -18.81 | 351.43 | -8.96 | 145.98 | 0.2782 | -676.6 | -603.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-07 08:00:33 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 | 0.70 | 0.00 | 0.37 | -26.20 | 2.35 | 1.96 | 185.13 | 0.3454 | 745.0 | 579.6 | |
| 0.00 | 2.91 | 0.00 | 1.48 | -18.23 | 355.57 | -4.81 | 159.18 | 0.2250 | -892.0 | -607.9 | |
| 0.00 | 0.53 | 0.00 | 0.27 | -18.01 | 354.54 | -5.85 | 154.78 | 0.2283 | -803.0 | -625.7 | |
| 0.00 | 1.15 | 0.00 | 0.58 | -18.11 | 353.17 | -7.22 | 150.11 | 0.2407 | -891.0 | -682.2 | |
| 0.00 | 0.79 | 0.00 | 0.40 | -18.26 | 353.10 | -7.29 | 150.20 | 0.2435 | -752.0 | -600.0 | |
| 0.00 | 1.06 | 0.00 | 0.53 | -9.51 | 350.02 | -10.36 | 108.68 | 0.1880 | -973.0 | -857.2 | |
| 0.00 | 2.38 | 0.00 | 1.26 | -23.04 | 347.95 | -12.43 | 145.90 | 0.3548 | -765.0 | -616.2 | |
| 0.35 | 2.29 | 0.18 | 1.20 | -17.60 | 345.12 | -15.26 | 128.82 | 0.3234 | -1019.8 | -831.0 | |
| 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. | |