SDO HMI 2014-04-23 02:00:35 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 |
| 0.00 | 7.55 | 0.00 | 3.92 | -7.55 | 137.48 | -14.93 | 107.01 | 0.2763 | 759.7 | 617.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-23 02:00:35 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 | 1.15 | 0.00 | 0.58 | -14.17 | 149.32 | -3.09 | 161.93 | 0.1694 | 894.0 | 735.2 | |
| 0.00 | 1.33 | 0.00 | 0.66 | -6.29 | 147.49 | -4.92 | 105.44 | 0.0889 | 826.0 | 578.3 | |
| 0.00 | 1.60 | 0.00 | 0.83 | -9.60 | 136.33 | -16.08 | 107.16 | 0.2871 | 856.0 | 637.4 | |
| 0.00 | 1.60 | 0.00 | 0.84 | -2.48 | 133.01 | -19.40 | 83.42 | 0.3356 | 846.0 | 654.1 | |
| 0.00 | 1.51 | 0.00 | 0.81 | -6.03 | 130.02 | -22.39 | 93.82 | 0.3813 | 698.0 | 534.0 | |
| 0.00 | 0.36 | 0.00 | 0.20 | -11.43 | 123.93 | -28.48 | 104.75 | 0.4853 | 438.0 | 508.5 | |
| 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. | |