SDO HMI 2011-10-26 16:59:00 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 |
| 1.91 | 15.71 | 1.08 | 8.89 | -20.68 | 257.90 | -13.59 | 152.93 | 0.4851 | 160.5 | 195.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-26 16:59:00 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 | 2.26 | 0.00 | 1.27 | -20.68 | 258.65 | -12.84 | 154.20 | 0.4799 | 712.0 | 580.9 | |
| 1.91 | 3.99 | 1.08 | 2.25 | -20.48 | 258.53 | -12.96 | 153.81 | 0.4780 | 944.5 | 787.4 | |
| 0.00 | 1.30 | 0.00 | 0.74 | -20.85 | 258.44 | -13.06 | 154.00 | 0.4836 | 584.0 | 451.1 | |
| 0.00 | 2.00 | 0.00 | 1.13 | -20.65 | 258.09 | -13.40 | 153.23 | 0.4833 | 837.0 | 648.5 | |
| 0.00 | 1.91 | 0.00 | 1.08 | -20.79 | 257.85 | -13.64 | 152.95 | 0.4869 | 613.0 | 465.3 | |
| 0.00 | 1.21 | 0.00 | 0.70 | -21.84 | 256.96 | -14.54 | 152.53 | 0.5070 | -869.0 | -751.4 | |
| 0.00 | 1.13 | 0.00 | 0.64 | -20.23 | 256.63 | -14.87 | 150.32 | 0.4883 | -960.0 | -747.7 | |
| 0.00 | 1.91 | 0.00 | 1.08 | -20.39 | 256.54 | -14.95 | 150.37 | 0.4910 | -640.0 | -646.5 | |
| 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. | |