SDO HMI 2014-04-12 22:00:33 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 | 8.56 | 0.00 | 4.31 | -11.16 | 278.84 | -7.83 | 126.22 | 0.1739 | -721.2 | -559.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-12 22:00:33 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 | 1.59 | 0.00 | 0.80 | -15.22 | 284.03 | -2.65 | 164.78 | 0.1705 | -586.0 | -510.1 | |
| 0.00 | 2.21 | 0.00 | 1.11 | -10.90 | 279.29 | -7.39 | 125.42 | 0.1556 | -711.0 | -622.1 | |
| 0.00 | 1.94 | 0.00 | 0.98 | -10.12 | 277.27 | -9.40 | 115.47 | 0.1790 | -637.0 | -380.3 | |
| 0.00 | 1.15 | 0.00 | 0.58 | -9.78 | 277.22 | -9.45 | 113.64 | 0.1775 | -887.0 | -689.5 | |
| 0.00 | 0.88 | 0.00 | 0.44 | -9.33 | 276.87 | -9.81 | 110.53 | 0.1804 | -777.0 | -661.6 | |
| 0.00 | 0.79 | 0.00 | 0.40 | -10.33 | 275.62 | -11.05 | 113.18 | 0.2061 | -729.0 | -624.4 | |
| 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. | |