SDO HMI 2011-11-29 22:58:56 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 |
| 23.84 | 105.45 | 20.36 | 90.32 | 15.67 | 233.31 | 53.37 | 288.55 | 0.8172 | -711.5 | -227.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-29 22:58:56 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 | 2.22 | 0.00 | 2.04 | 18.33 | 235.76 | 55.82 | 291.18 | 0.8444 | -600.0 | -432.9 | |
| 0.00 | 0.60 | 0.00 | 0.55 | 18.55 | 235.64 | 55.71 | 291.46 | 0.8437 | -269.0 | -227.1 | |
| 16.83 | 92.46 | 14.37 | 79.00 | 15.43 | 233.28 | 53.34 | 288.26 | 0.8165 | -791.1 | -208.3 | |
| 1.71 | -3.00 | 1.45 | -3.00 | 15.68 | 232.91 | 52.97 | 288.64 | 0.8134 | -842.2 | 999999 | |
| 3.76 | 6.75 | 3.25 | 5.83 | 17.15 | 233.44 | 53.50 | 290.30 | 0.8212 | -525.3 | -311.7 | |
| 0.00 | 1.37 | 0.00 | 1.17 | 16.97 | 233.05 | 53.12 | 290.17 | 0.8172 | -664.0 | -547.7 | |
| 1.54 | 2.05 | 1.29 | 1.73 | 15.90 | 232.58 | 52.64 | 288.98 | 0.8106 | -612.5 | -620.0 | |
| 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. | |