| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 5.95 | 19.23 | 4.37 | 14.07 | 16.99 | 178.10 | -41.21 | 58.90 | 0.7379 | -314.4 | -28.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-27 09:58:58 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 | 1.38 | 0.00 | 0.97 | 15.95 | 180.29 | -39.03 | 58.85 | 0.7099 | 779.0 | 669.4 | |
| 0.00 | 1.81 | 0.00 | 1.28 | 15.95 | 179.85 | -39.47 | 59.12 | 0.7145 | 526.0 | 436.1 | |
| 0.00 | 2.76 | 0.00 | 1.94 | 15.67 | 179.79 | -39.53 | 59.51 | 0.7135 | 722.0 | 568.5 | |
| 0.00 | 0.86 | 0.00 | 0.63 | 18.73 | 178.83 | -40.49 | 56.40 | 0.7407 | -606.0 | -491.2 | |
| 5.95 | 8.27 | 4.37 | 6.08 | 17.33 | 178.07 | -41.25 | 58.53 | 0.7404 | -771.7 | -571.2 | |
| 0.00 | 1.47 | 0.00 | 1.12 | 17.43 | 175.79 | -43.53 | 59.71 | 0.7632 | -524.0 | -461.5 | |
| 0.00 | 0.78 | 0.00 | 0.59 | 16.78 | 175.90 | -43.42 | 60.43 | 0.7589 | -563.0 | -477.2 | |
| 0.00 | 0.69 | 0.00 | 0.53 | 18.35 | 175.33 | -43.98 | 58.89 | 0.7722 | -334.0 | -309.8 | |
| 0.00 | 1.21 | 0.00 | 0.93 | 17.70 | 175.41 | -43.91 | 59.61 | 0.7682 | -517.0 | -357.2 | |
| 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. | |