SDO HMI 2014-08-18 02:00:38 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 |
| 55.39 | 353.09 | 66.34 | 421.64 | -17.63 | 106.16 | 61.49 | 246.97 | 0.9097 | 59.2 | -19.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-18 02:00:38 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 |
| 28.82 | 174.61 | 38.79 | 235.26 | -17.11 | 109.57 | 64.90 | 248.55 | 0.9314 | 516.7 | 168.7 | |
| 0.00 | 3.42 | 0.00 | 4.37 | -16.05 | 108.46 | 63.79 | 249.37 | 0.9229 | 340.0 | 380.8 | |
| 0.00 | 2.07 | 0.00 | 2.59 | -16.37 | 107.86 | 63.19 | 248.87 | 0.9197 | 624.0 | 470.0 | |
| 0.00 | 0.63 | 0.00 | 0.79 | -16.69 | 107.77 | 63.09 | 248.51 | 0.9197 | 323.0 | 323.6 | |
| 0.90 | 5.58 | 1.08 | 6.71 | -16.88 | 106.56 | 61.89 | 247.97 | 0.9123 | 595.9 | 439.5 | |
| 0.00 | 1.62 | 0.00 | 1.84 | -19.37 | 104.08 | 59.40 | 244.57 | 0.9010 | -409.0 | -298.1 | |
| 0.00 | 0.99 | 0.00 | 1.06 | -18.17 | 102.71 | 58.04 | 245.40 | 0.8885 | 356.0 | 291.2 | |
| 14.23 | 164.17 | 14.59 | 169.02 | -18.18 | 101.23 | 56.56 | 244.88 | 0.8775 | -831.0 | -318.6 | |
| 11.44 | -8.00 | 11.88 | -8.00 | -18.70 | 101.50 | 56.82 | 244.41 | 0.8809 | -468.9 | 999999 | |
| 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. | |