SDO HMI 2011-08-13 06:59:10 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 12.89 | 0.00 | 7.21 | -20.83 | 173.50 | -0.42 | 179.25 | 0.4630 | 178.3 | 414.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-13 06:59:10 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 | 1.62 | 0.00 | 0.90 | -20.39 | 175.15 | 1.23 | 182.54 | 0.4551 | 701.0 | 596.9 | |
| 0.00 | 1.08 | 0.00 | 0.60 | -20.29 | 174.85 | 0.93 | 181.94 | 0.4534 | 889.0 | 629.3 | |
| 0.00 | 1.62 | 0.00 | 0.91 | -20.90 | 174.66 | 0.74 | 181.51 | 0.4628 | 761.0 | 621.8 | |
| 0.00 | 5.78 | 0.00 | 3.21 | -20.29 | 174.56 | 0.64 | 181.34 | 0.4532 | 976.0 | 737.3 | |
| 0.00 | 0.99 | 0.00 | 0.55 | -20.09 | 170.90 | -3.01 | 173.71 | 0.4526 | -721.0 | -569.5 | |
| 0.00 | 0.99 | 0.00 | 0.59 | -26.96 | 169.92 | -4.00 | 173.57 | 0.5572 | -611.0 | -497.9 | |
| 0.00 | 0.81 | 0.00 | 0.45 | -19.06 | 166.34 | -7.58 | 163.87 | 0.4506 | -747.0 | -550.4 | |
| 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. | |