| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 2.22 | 14.71 | 1.31 | 8.72 | -21.45 | 310.15 | -17.00 | 150.14 | 0.5478 | -502.5 | -494.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-20 05:00:34 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 | 1.42 | 0.00 | 0.81 | -18.87 | 313.63 | -13.52 | 153.04 | 0.4900 | 793.0 | 658.9 | |
| 0.00 | 2.04 | 0.00 | 1.21 | -21.84 | 310.26 | -16.89 | 150.62 | 0.5520 | -939.0 | -775.6 | |
| 0.80 | 1.86 | 0.47 | 1.10 | -21.02 | 310.16 | -16.99 | 149.68 | 0.5425 | -412.4 | -475.2 | |
| 0.00 | 1.24 | 0.00 | 0.74 | -21.92 | 310.02 | -17.14 | 150.35 | 0.5547 | -598.0 | -547.0 | |
| 0.00 | 1.06 | 0.00 | 0.63 | -21.54 | 310.00 | -17.16 | 149.95 | 0.5502 | -648.0 | -605.1 | |
| 0.00 | 1.60 | 0.00 | 0.95 | -21.86 | 309.72 | -17.44 | 149.87 | 0.5561 | -811.0 | -734.4 | |
| 0.00 | 2.39 | 0.00 | 1.43 | -22.04 | 309.46 | -17.70 | 149.67 | 0.5603 | -619.0 | -571.6 | |
| 1.42 | 2.48 | 0.84 | 1.48 | -21.66 | 309.47 | -17.68 | 149.33 | 0.5555 | -900.4 | -794.0 | |
| 0.00 | 0.62 | 0.00 | 0.37 | -21.81 | 309.25 | -17.91 | 149.16 | 0.5590 | -494.0 | -392.1 | |
| 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. | |