| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 15.40 | 45.35 | 15.68 | 46.07 | -12.10 | 48.67 | 58.60 | 252.83 | 0.8744 | -246.7 | -284.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-20 17:59:01 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 |
| 4.00 | 12.01 | 4.66 | 14.04 | -12.06 | 52.84 | 62.77 | 253.92 | 0.9067 | 565.0 | 152.5 | |
| 0.00 | 0.87 | 0.00 | 0.88 | -12.09 | 48.46 | 58.39 | 252.83 | 0.8736 | -315.0 | -226.9 | |
| 1.65 | 2.18 | 1.65 | 2.17 | -12.03 | 48.09 | 58.02 | 252.80 | 0.8704 | -488.8 | -416.7 | |
| 0.00 | 0.61 | 0.00 | 0.59 | -12.57 | 47.13 | 57.06 | 251.93 | 0.8636 | -269.0 | -293.0 | |
| 1.31 | 27.94 | 1.26 | 26.74 | -12.12 | 46.92 | 56.85 | 252.38 | 0.8609 | -275.8 | -495.2 | |
| 2.52 | -5.00 | 2.44 | -5.00 | -12.37 | 46.89 | 56.82 | 252.10 | 0.8612 | -366.9 | 999999 | |
| 0.00 | 0.70 | 0.00 | 0.66 | -11.35 | 46.56 | 56.49 | 253.16 | 0.8562 | -594.0 | -513.1 | |
| 0.00 | 1.04 | 0.00 | 0.99 | -11.47 | 46.54 | 56.47 | 253.02 | 0.8563 | -641.0 | -541.4 | |
| 5.92 | -5.00 | 5.67 | -5.00 | -12.09 | 46.57 | 56.50 | 252.32 | 0.8579 | -638.4 | 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. | |