SDO HMI 2014-12-07 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 |
| 53.37 | 326.88 | 122.53 | 752.39 | -19.63 | 85.25 | 76.63 | 249.85 | 0.9768 | 269.7 | 143.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-07 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 |
| 17.05 | 315.63 | 44.79 | 731.05 | -18.81 | 87.08 | 78.46 | 250.82 | 0.9828 | 112.7 | 134.0 | |
| 14.49 | -1.00 | 33.11 | -1.00 | -19.24 | 85.25 | 76.63 | 250.25 | 0.9769 | 284.7 | 999999 | |
| 0.00 | 3.24 | 0.00 | 6.24 | -18.64 | 82.93 | 74.30 | 250.68 | 0.9678 | 276.0 | 263.4 | |
| 21.83 | -1.00 | 44.63 | -1.00 | -20.66 | 83.65 | 75.02 | 248.67 | 0.9715 | 402.8 | 999999 | |
| 0.00 | 1.19 | 0.00 | 2.36 | -21.70 | 82.95 | 74.33 | 247.53 | 0.9692 | 431.0 | 402.3 | |
| 0.00 | 5.46 | 0.00 | 10.16 | -21.22 | 82.06 | 73.43 | 247.93 | 0.9653 | 542.0 | 501.9 | |
| 0.00 | 1.36 | 0.00 | 2.58 | -21.58 | 82.30 | 73.68 | 247.60 | 0.9665 | 430.0 | 395.6 | |
| 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. | |