| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 1.52 | 7.62 | 1.04 | 5.24 | 18.61 | 359.51 | 43.65 | 289.48 | 0.6962 | -378.4 | -392.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-29 18:59:08 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 | 0.90 | 0.00 | 0.63 | 19.00 | 0.69 | 44.83 | 289.78 | 0.7107 | -590.0 | -449.3 | |
| 1.52 | 2.06 | 1.04 | 1.40 | 17.58 | 359.12 | 43.26 | 288.08 | 0.6896 | 552.1 | 499.5 | |
| 0.00 | 1.16 | 0.00 | 0.80 | 18.95 | 359.51 | 43.65 | 289.96 | 0.6969 | -587.0 | -538.8 | |
| 0.00 | 0.99 | 0.00 | 0.68 | 18.70 | 359.43 | 43.57 | 289.63 | 0.6954 | -574.0 | -485.5 | |
| 0.00 | 0.90 | 0.00 | 0.62 | 19.10 | 359.52 | 43.66 | 290.18 | 0.6973 | -502.0 | -461.7 | |
| 0.00 | 1.61 | 0.00 | 1.11 | 19.11 | 359.39 | 43.53 | 290.23 | 0.6958 | -607.0 | -455.3 | |
| 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. | |