SDO HMI 2011-08-23 19:59:09 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 |
| 7.73 | 28.48 | 4.62 | 17.54 | 18.57 | 359.41 | -35.17 | 67.60 | 0.5894 | -510.7 | -430.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 19:59:09 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 | 1.26 | 0.00 | 0.73 | 16.22 | 4.22 | -30.36 | 70.01 | 0.5185 | -811.0 | -633.1 | |
| 1.44 | 8.98 | 0.85 | 5.34 | 18.64 | 2.22 | -32.36 | 66.55 | 0.5549 | -964.1 | -804.1 | |
| 6.29 | 9.07 | 3.77 | 5.45 | 18.52 | 1.26 | -33.32 | 67.20 | 0.5672 | -863.7 | -628.9 | |
| 0.00 | 1.89 | 0.00 | 1.15 | 18.99 | 0.34 | -34.24 | 66.81 | 0.5810 | -835.0 | -671.5 | |
| 0.00 | 1.62 | 0.00 | 0.98 | 19.39 | 0.25 | -34.33 | 66.18 | 0.5837 | -705.0 | -538.2 | |
| 0.00 | 2.33 | 0.00 | 1.43 | 18.67 | 359.79 | -34.79 | 67.56 | 0.5870 | -236.0 | -298.3 | |
| 0.00 | 1.17 | 0.00 | 0.77 | 18.18 | 353.38 | -41.20 | 70.41 | 0.6666 | 416.0 | 279.1 | |
| 0.00 | 2.16 | 0.00 | 1.69 | 18.90 | 343.83 | -50.75 | 71.24 | 0.7760 | 823.0 | 633.6 | |
| 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. | |