SDO HMI 2011-08-23 03:59:09 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 |
| 25.08 | 43.87 | 17.86 | 31.14 | 18.75 | 358.21 | -45.18 | 70.23 | 0.7104 | -390.2 | -379.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 03:59:09 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 |
| 4.14 | 18.70 | 2.75 | 12.40 | 19.03 | 2.23 | -41.16 | 69.13 | 0.6682 | -756.9 | -765.9 | |
| 0.00 | 0.99 | 0.00 | 0.65 | 17.47 | 2.64 | -40.75 | 71.35 | 0.6595 | -730.0 | -612.2 | |
| 4.40 | -1.00 | 2.93 | -1.00 | 18.68 | 2.12 | -41.27 | 69.68 | 0.6686 | -755.8 | 999999 | |
| 12.76 | 15.28 | 8.58 | 10.26 | 18.62 | 1.37 | -42.02 | 69.96 | 0.6776 | -767.4 | -421.0 | |
| 0.00 | 0.90 | 0.00 | 0.61 | 19.33 | 0.49 | -42.90 | 69.15 | 0.6897 | -507.0 | -429.5 | |
| 0.00 | 1.08 | 0.00 | 0.83 | 18.14 | 353.14 | -50.25 | 72.15 | 0.7698 | 651.0 | 580.8 | |
| 0.00 | 1.08 | 0.00 | 0.83 | 17.16 | 353.47 | -49.92 | 73.38 | 0.7653 | 621.0 | 468.7 | |
| 0.00 | 0.72 | 0.00 | 0.68 | 19.26 | 344.54 | -58.85 | 71.63 | 0.8533 | 444.0 | 313.0 | |
| 3.78 | 5.12 | 3.60 | 4.88 | 19.17 | 344.22 | -59.17 | 71.77 | 0.8560 | 411.1 | 304.6 | |
| 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. | |