SDO HMI 2014-12-08 00:00:25 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 |
| 52.18 | 324.87 | 124.05 | 777.90 | -19.66 | 85.24 | 77.16 | 249.85 | 0.9786 | 252.2 | 131.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-08 00:00:25 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 |
| 15.35 | 315.40 | 42.30 | 759.61 | -18.78 | 87.15 | 79.07 | 250.89 | 0.9846 | 87.2 | 122.2 | |
| 15.09 | -1.00 | 35.77 | -1.00 | -19.28 | 85.33 | 77.26 | 250.26 | 0.9791 | 276.0 | 999999 | |
| 21.74 | -1.00 | 45.98 | -1.00 | -20.66 | 83.62 | 75.54 | 248.72 | 0.9734 | 376.8 | 999999 | |
| 0.00 | 0.77 | 0.00 | 1.56 | -21.80 | 82.80 | 74.72 | 247.47 | 0.9708 | 377.0 | 368.0 | |
| 0.00 | 8.70 | 0.00 | 16.73 | -21.36 | 82.04 | 73.96 | 247.85 | 0.9675 | 525.0 | 454.1 | |
| 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. | |