SDO HMI 2014-04-07 11:00:33 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 | 9.87 | 0.00 | 5.11 | -18.58 | 348.10 | -10.64 | 143.19 | 0.2933 | -451.6 | -540.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-07 11:00:33 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 | 1.23 | 0.00 | 0.63 | -19.25 | 1.67 | 2.93 | 192.00 | 0.2328 | 880.0 | 687.6 | |
| 0.00 | 0.97 | 0.00 | 0.49 | -15.79 | 351.08 | -7.66 | 142.71 | 0.2126 | -788.0 | -611.8 | |
| 0.00 | 1.50 | 0.00 | 0.79 | -23.05 | 347.91 | -10.83 | 149.41 | 0.3412 | -858.0 | -664.2 | |
| 0.00 | 2.03 | 0.00 | 1.05 | -17.63 | 345.08 | -13.66 | 131.87 | 0.3036 | -633.0 | -706.7 | |
| 0.00 | 4.14 | 0.00 | 2.15 | -17.84 | 344.99 | -13.74 | 132.25 | 0.3069 | -859.0 | -755.2 | |
| 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. | |