| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.57 | 0.00 | 6.56 | 7.54 | 347.85 | 29.22 | 272.73 | 0.4856 | -269.5 | -294.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-29 13:59:08 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 | 2.60 | 0.00 | 1.53 | 7.72 | 351.86 | 33.24 | 273.21 | 0.5461 | -670.0 | -548.2 | |
| 0.00 | 1.97 | 0.00 | 1.16 | 7.80 | 351.61 | 32.99 | 273.34 | 0.5425 | -867.0 | -655.3 | |
| 0.00 | 1.08 | 0.00 | 0.62 | 5.69 | 349.09 | 30.46 | 269.08 | 0.5066 | -818.0 | -651.5 | |
| 0.00 | 2.60 | 0.00 | 1.44 | 7.77 | 345.09 | 26.46 | 273.13 | 0.4440 | -719.0 | -634.3 | |
| 0.00 | 2.33 | 0.00 | 1.27 | 7.74 | 343.93 | 25.31 | 273.04 | 0.4259 | 688.0 | 493.3 | |
| 0.00 | 0.99 | 0.00 | 0.54 | 7.52 | 343.55 | 24.92 | 272.51 | 0.4199 | 769.0 | 663.0 | |
| 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. | |