| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 7.27 | 0.00 | 3.99 | -11.81 | 338.33 | 16.66 | 221.25 | 0.4269 | 543.7 | 469.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-20 15:00:34 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 | 0.89 | 0.00 | 0.50 | -12.73 | 341.55 | 19.88 | 224.98 | 0.4712 | 692.0 | 505.0 | |
| 0.00 | 1.95 | 0.00 | 1.08 | -12.38 | 339.34 | 17.67 | 222.14 | 0.4438 | 878.0 | 662.3 | |
| 0.00 | 0.89 | 0.00 | 0.49 | -12.19 | 339.33 | 17.66 | 222.42 | 0.4414 | 815.0 | 677.7 | |
| 0.00 | 1.33 | 0.00 | 0.72 | -9.92 | 337.15 | 15.48 | 222.37 | 0.3918 | 841.0 | 644.2 | |
| 0.00 | 1.06 | 0.00 | 0.57 | -11.14 | 336.67 | 15.00 | 219.44 | 0.4014 | -808.0 | -607.0 | |
| 0.00 | 1.15 | 0.00 | 0.63 | -12.58 | 336.14 | 14.47 | 216.24 | 0.4144 | 844.0 | 736.7 | |
| 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. | |