| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.80 | 0.00 | 7.80 | -20.31 | 152.69 | 55.84 | 243.38 | 0.8691 | 267.8 | 204.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-17 22:00:40 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 |
| 0.00 | 0.54 | 0.00 | 0.61 | -20.54 | 156.87 | 60.02 | 244.48 | 0.9006 | 233.0 | 206.2 | |
| 0.00 | 0.45 | 0.00 | 0.41 | -8.66 | 151.90 | 55.06 | 256.45 | 0.8357 | 443.0 | 351.2 | |
| 0.00 | 1.18 | 0.00 | 1.26 | -19.83 | 155.27 | 58.43 | 244.78 | 0.8878 | 377.0 | 327.8 | |
| 0.00 | 3.45 | 0.00 | 3.59 | -21.17 | 153.98 | 57.13 | 242.92 | 0.8816 | 138.0 | 192.2 | |
| 0.00 | 0.27 | 0.00 | 0.27 | -18.42 | 152.48 | 55.64 | 245.45 | 0.8630 | 360.0 | 328.0 | |
| 0.00 | 1.91 | 0.00 | 1.66 | -21.91 | 146.62 | 49.77 | 239.34 | 0.8256 | 56.0 | 83.1 | |
| 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. | |