| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 47.84 | 251.46 | 65.40 | 344.83 | -8.44 | 248.79 | -67.52 | 101.27 | 0.9334 | 173.7 | -114.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-28 13:00:40 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 |
| 3.53 | 250.19 | 4.49 | 342.90 | -8.49 | 250.55 | -65.76 | 101.64 | 0.9224 | 551.7 | -113.6 | |
| 3.44 | -1.00 | 4.48 | -1.00 | -7.92 | 249.89 | -66.42 | 100.92 | 0.9261 | 650.1 | 999999 | |
| 12.87 | -1.00 | 17.23 | -1.00 | -8.42 | 249.25 | -67.06 | 101.33 | 0.9307 | 275.0 | 999999 | |
| 14.05 | -1.00 | 18.84 | -1.00 | -7.77 | 249.15 | -67.16 | 100.63 | 0.9306 | 525.9 | 999999 | |
| 1.72 | -1.00 | 2.38 | -1.00 | -7.83 | 248.48 | -67.83 | 100.58 | 0.9348 | 192.5 | 999999 | |
| 1.45 | -1.00 | 2.10 | -1.00 | -9.22 | 247.61 | -68.70 | 101.90 | 0.9413 | -603.5 | 999999 | |
| 1.72 | -1.00 | 2.45 | -1.00 | -8.20 | 247.85 | -68.46 | 100.87 | 0.9390 | -128.9 | 999999 | |
| 9.06 | -1.00 | 13.43 | -1.00 | -9.57 | 247.20 | -69.11 | 102.20 | 0.9440 | -528.8 | 999999 | |
| 0.00 | 1.27 | 0.00 | 1.93 | -8.82 | 246.55 | -69.76 | 101.30 | 0.9469 | -277.0 | -236.1 | |
| 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. | |