SDO HMI 2014-03-30 10:00:31 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 |
| 3.07 | 16.22 | 3.23 | 16.93 | -25.39 | 166.50 | 61.66 | 244.66 | 0.8816 | 72.8 | -34.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 10:00:31 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 | 0.96 | 0.00 | 1.07 | -24.65 | 168.56 | 63.72 | 245.71 | 0.8960 | -459.0 | -332.2 | |
| 0.00 | 0.53 | 0.00 | 0.58 | -25.34 | 168.10 | 63.26 | 244.89 | 0.8932 | -255.0 | -267.8 | |
| 0.00 | 0.44 | 0.00 | 0.47 | -25.22 | 167.69 | 62.85 | 244.98 | 0.8902 | -160.0 | -143.2 | |
| 0.00 | 1.58 | 0.00 | 1.61 | -24.23 | 165.84 | 61.00 | 245.90 | 0.8757 | 172.0 | 175.4 | |
| 3.07 | 6.75 | 3.23 | 7.12 | -25.80 | 166.77 | 61.93 | 244.24 | 0.8841 | 466.6 | 343.7 | |
| 0.00 | 4.82 | 0.00 | 4.96 | -25.18 | 166.09 | 61.25 | 244.85 | 0.8784 | -495.0 | -376.5 | |
| 0.00 | 1.14 | 0.00 | 1.12 | -26.15 | 164.20 | 59.36 | 243.51 | 0.8650 | 362.0 | 321.4 | |
| 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. | |