SDO HMI 2014-12-02 23:00:25 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 |
| 14.94 | 96.23 | 27.68 | 180.62 | -3.92 | 0.06 | -74.45 | 94.25 | 0.9649 | 418.8 | 13.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-02 23:00:25 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 | 1.88 | 0.00 | 3.01 | -4.54 | 2.64 | -71.88 | 95.00 | 0.9524 | 169.0 | 221.0 | |
| 0.00 | 1.62 | 0.00 | 2.64 | -4.58 | 2.34 | -72.18 | 95.02 | 0.9540 | 421.0 | 374.5 | |
| 14.94 | 89.91 | 27.68 | 168.43 | -3.86 | 0.10 | -74.41 | 94.19 | 0.9648 | 473.8 | 12.2 | |
| 0.00 | 1.37 | 0.00 | 3.16 | -5.06 | 356.97 | -77.55 | 95.32 | 0.9779 | -280.0 | -241.0 | |
| 0.00 | 1.45 | 0.00 | 3.38 | -4.52 | 356.89 | -77.62 | 94.77 | 0.9781 | -158.0 | -168.5 | |
| 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. | |