SDO HMI 2014-12-02 18:00:25 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 |
| 0.00 | 16.15 | 0.00 | 8.75 | -4.58 | 100.03 | 22.75 | 255.82 | 0.3996 | 189.5 | 415.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-02 18:00:25 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 | 0.77 | 0.00 | 0.44 | -9.56 | 105.73 | 28.45 | 249.39 | 0.5040 | 645.0 | 574.7 | |
| 0.00 | 1.11 | 0.00 | 0.63 | -9.52 | 103.94 | 26.66 | 248.29 | 0.4782 | -715.0 | -540.2 | |
| 0.00 | 2.31 | 0.00 | 1.26 | -3.19 | 102.38 | 25.09 | 261.04 | 0.4305 | 656.0 | 594.4 | |
| 0.00 | 2.48 | 0.00 | 1.35 | -2.98 | 102.04 | 24.76 | 261.42 | 0.4249 | 655.0 | 483.8 | |
| 0.00 | 6.06 | 0.00 | 3.31 | -3.25 | 101.76 | 24.48 | 260.69 | 0.4210 | 991.0 | 813.9 | |
| 0.00 | 1.11 | 0.00 | 0.58 | -9.57 | 92.96 | 15.68 | 236.27 | 0.3219 | 900.0 | 738.3 | |
| 0.00 | 1.37 | 0.00 | 0.70 | -3.66 | 90.33 | 13.05 | 251.41 | 0.2388 | -793.0 | -702.0 | |
| 0.00 | 0.94 | 0.00 | 0.48 | -6.12 | 88.55 | 11.27 | 238.62 | 0.2287 | -823.0 | -668.5 | |
| 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. | |