| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 51.29 | 274.95 | 38.74 | 207.92 | 14.99 | 133.56 | 49.23 | 284.08 | 0.7562 | -717.5 | -225.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-15 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 |
| 43.81 | 255.30 | 33.47 | 195.01 | 15.35 | 134.13 | 49.80 | 284.54 | 0.7632 | -904.1 | -276.5 | |
| 3.70 | -1.00 | 2.78 | -1.00 | 14.98 | 133.43 | 49.10 | 284.11 | 0.7552 | -982.3 | 999999 | |
| 0.00 | 0.90 | 0.00 | 0.60 | 9.87 | 126.66 | 42.33 | 277.38 | 0.6713 | 515.0 | 404.2 | |
| 0.00 | 1.35 | 0.00 | 0.89 | 7.74 | 125.82 | 41.49 | 274.16 | 0.6605 | 192.0 | 262.7 | |
| 2.70 | 11.00 | 1.78 | 7.23 | 10.03 | 125.77 | 41.44 | 277.65 | 0.6599 | 733.6 | 645.8 | |
| 1.08 | 5.59 | 0.71 | 3.67 | 10.47 | 125.59 | 41.27 | 278.33 | 0.6578 | 688.2 | 550.4 | |
| 0.00 | 0.81 | 0.00 | 0.52 | 10.30 | 124.22 | 39.89 | 278.14 | 0.6397 | 543.0 | 422.6 | |
| 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. | |