SDO HMI 2011-08-04 22:59:10 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 |
| 5.96 | 17.36 | 4.14 | 12.27 | -16.40 | 244.08 | -40.00 | 120.16 | 0.7152 | 222.5 | 48.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-04 22:59:10 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 | 1.81 | 0.00 | 1.25 | -16.13 | 245.53 | -38.56 | 120.68 | 0.6985 | 806.0 | 651.2 | |
| 5.06 | 5.97 | 3.51 | 4.13 | -16.37 | 245.43 | -38.65 | 120.92 | 0.7009 | 779.1 | 601.6 | |
| 0.90 | 2.17 | 0.63 | 1.51 | -16.62 | 245.13 | -38.96 | 121.05 | 0.7055 | 679.2 | 520.7 | |
| 0.00 | 0.99 | 0.00 | 0.70 | -16.73 | 244.98 | -39.11 | 121.09 | 0.7077 | 302.0 | 364.2 | |
| 0.00 | 0.90 | 0.00 | 0.65 | -16.27 | 242.63 | -41.45 | 119.14 | 0.7299 | -671.0 | -530.7 | |
| 0.00 | 1.18 | 0.00 | 0.84 | -15.15 | 242.87 | -41.22 | 117.86 | 0.7217 | -641.0 | -520.7 | |
| 0.00 | 1.36 | 0.00 | 1.00 | -17.32 | 241.75 | -42.34 | 119.93 | 0.7442 | -721.0 | -646.9 | |
| 0.00 | 0.99 | 0.00 | 0.72 | -15.66 | 242.07 | -42.02 | 118.06 | 0.7327 | 577.0 | 521.8 | |
| 0.00 | 0.36 | 0.00 | 0.26 | -15.50 | 242.11 | -41.98 | 117.88 | 0.7315 | 471.0 | 576.8 | |
| 0.00 | 1.63 | 0.00 | 1.21 | -17.12 | 241.33 | -42.76 | 119.46 | 0.7475 | -585.0 | -499.5 | |
| 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. | |