SDO HMI 2014-04-11 19:00:33 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 |
| 0.00 | 5.46 | 0.00 | 2.81 | -9.47 | 287.42 | -14.12 | 105.32 | 0.2605 | 563.4 | 455.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-11 19:00:33 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 | 0.88 | 0.00 | 0.45 | -9.59 | 290.28 | -11.26 | 109.09 | 0.2047 | 869.0 | 692.2 | |
| 0.00 | 1.15 | 0.00 | 0.59 | -16.50 | 289.37 | -12.17 | 132.71 | 0.2764 | -806.0 | -630.8 | |
| 0.00 | 1.32 | 0.00 | 0.68 | -5.82 | 286.26 | -15.28 | 90.57 | 0.2634 | 1125.0 | 860.7 | |
| 0.00 | 1.23 | 0.00 | 0.64 | -9.57 | 285.86 | -15.68 | 104.34 | 0.2763 | 911.0 | 766.9 | |
| 0.00 | 0.88 | 0.00 | 0.45 | -5.48 | 285.95 | -15.59 | 89.32 | 0.2687 | 718.0 | 595.3 | |
| 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. | |