| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 35.35 | 174.65 | 65.54 | 319.53 | -8.66 | 248.31 | -73.49 | 100.56 | 0.9652 | -98.2 | -126.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-28 03:00:40 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 |
| 2.18 | 3.63 | 3.51 | 5.84 | -8.59 | 250.82 | -70.97 | 100.86 | 0.9532 | 493.3 | 396.1 | |
| 1.72 | 3.90 | 2.81 | 6.38 | -8.27 | 250.58 | -71.22 | 100.49 | 0.9542 | 495.1 | 426.5 | |
| 7.79 | 165.85 | 13.71 | 304.79 | -7.74 | 249.20 | -72.59 | 99.74 | 0.9606 | 534.5 | -137.7 | |
| 3.63 | -3.00 | 6.51 | -3.00 | -8.27 | 248.85 | -72.95 | 100.24 | 0.9626 | 184.2 | 999999 | |
| 6.16 | -3.00 | 11.45 | -3.00 | -8.09 | 248.40 | -73.40 | 99.99 | 0.9646 | -4.9 | 999999 | |
| 13.87 | -3.00 | 27.55 | -3.00 | -9.48 | 247.52 | -74.28 | 101.29 | 0.9693 | -645.1 | 999999 | |
| 0.00 | 1.27 | 0.00 | 2.52 | -8.04 | 247.29 | -74.51 | 99.78 | 0.9694 | -357.0 | -339.1 | |
| 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. | |