SDO HMI 2014-12-04 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 |
| 0.00 | 9.30 | 0.00 | 6.47 | 12.97 | 17.84 | -42.95 | 71.91 | 0.7009 | -466.6 | -399.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 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 |
| 0.00 | 1.45 | 0.00 | 0.93 | 12.60 | 22.93 | -37.86 | 70.59 | 0.6373 | -518.0 | -358.2 | |
| 0.00 | 1.02 | 0.00 | 0.69 | 15.97 | 20.42 | -40.37 | 66.69 | 0.6804 | -688.0 | -519.8 | |
| 0.00 | 1.11 | 0.00 | 0.73 | 8.12 | 20.52 | -40.26 | 78.16 | 0.6561 | -628.0 | -549.7 | |
| 0.00 | 0.43 | 0.00 | 0.30 | 18.06 | 18.28 | -42.51 | 64.71 | 0.7128 | -496.0 | -432.0 | |
| 0.00 | 0.94 | 0.00 | 0.66 | 13.34 | 17.37 | -43.42 | 71.48 | 0.7077 | -666.0 | -580.8 | |
| 0.00 | 0.85 | 0.00 | 0.61 | 13.88 | 16.52 | -44.26 | 71.00 | 0.7190 | -434.0 | -329.7 | |
| 0.00 | 0.94 | 0.00 | 0.65 | 8.91 | 16.82 | -43.97 | 77.81 | 0.7041 | -677.0 | -592.2 | |
| 0.00 | 1.28 | 0.00 | 0.90 | 9.20 | 16.19 | -44.60 | 77.52 | 0.7123 | -433.0 | -350.7 | |
| 0.00 | 0.68 | 0.00 | 0.52 | 17.14 | 13.79 | -47.00 | 67.55 | 0.7584 | -504.0 | -448.8 | |
| 0.00 | 0.60 | 0.00 | 0.48 | 19.97 | 11.07 | -49.71 | 64.91 | 0.7940 | 378.0 | 315.0 | |
| 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. | |