| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 17.42 | 75.86 | 13.81 | 60.09 | -21.11 | 69.60 | 44.95 | 237.65 | 0.7822 | 690.7 | 186.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-23 09:00:40 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 |
| 15.06 | 66.96 | 11.99 | 53.31 | -21.11 | 69.88 | 45.23 | 237.80 | 0.7848 | 822.7 | 194.4 | |
| 0.00 | 0.64 | 0.00 | 0.50 | -21.06 | 69.02 | 44.37 | 237.43 | 0.7767 | 533.0 | 479.9 | |
| 1.45 | 3.72 | 1.13 | 2.89 | -20.67 | 68.79 | 44.14 | 237.75 | 0.7727 | 723.0 | 628.4 | |
| 0.91 | 2.00 | 0.69 | 1.53 | -21.43 | 67.53 | 42.88 | 236.18 | 0.7647 | 655.9 | 495.5 | |
| 0.00 | 2.54 | 0.00 | 1.86 | -21.42 | 64.72 | 40.07 | 234.54 | 0.7381 | -746.0 | -640.3 | |
| 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. | |