SDO HMI 2011-12-09 03:58:56 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 |
| 33.33 | 121.82 | 24.77 | 89.96 | 18.44 | 103.50 | 44.91 | 295.38 | 0.7436 | -266.4 | -242.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-09 03:58:56 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 |
| 8.87 | 18.58 | 6.73 | 14.06 | 17.57 | 105.32 | 46.73 | 293.58 | 0.7598 | 633.6 | 591.1 | |
| 4.09 | -1.00 | 3.09 | -1.00 | 17.10 | 105.17 | 46.58 | 293.04 | 0.7568 | 641.1 | 999999 | |
| 18.84 | 99.82 | 13.86 | 73.50 | 18.68 | 103.24 | 44.65 | 295.78 | 0.7417 | -977.5 | -305.9 | |
| 1.53 | 2.39 | 1.09 | 1.70 | 17.80 | 101.54 | 42.95 | 295.33 | 0.7201 | -728.2 | -581.6 | |
| 0.00 | 0.26 | 0.00 | 0.18 | 17.56 | 100.91 | 42.32 | 295.26 | 0.7122 | 443.0 | 420.0 | |
| 0.00 | 0.77 | 0.00 | 0.52 | 14.38 | 99.57 | 40.98 | 291.47 | 0.6849 | 522.0 | 388.8 | |
| 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. | |