SDO HMI 2014-07-17 07:00:40 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 | 5.98 | 0.00 | 3.31 | -13.56 | 86.98 | -18.15 | 137.23 | 0.4380 | -153.8 | -443.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-17 07:00:40 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 | 0.54 | 0.00 | 0.28 | -11.93 | 100.72 | -4.41 | 165.11 | 0.2943 | 707.0 | 557.3 | |
| 0.00 | 0.45 | 0.00 | 0.24 | -12.31 | 100.21 | -4.92 | 163.86 | 0.3027 | 287.0 | 421.8 | |
| 0.00 | 2.54 | 0.00 | 1.42 | -14.05 | 84.46 | -20.67 | 132.50 | 0.4663 | -703.0 | -514.9 | |
| 0.00 | 2.45 | 0.00 | 1.37 | -13.60 | 84.47 | -20.66 | 131.77 | 0.4617 | -906.0 | -724.4 | |
| 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. | |