SDO HMI 2011-12-15 21:58:55 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 |
| 1.70 | 29.69 | 0.89 | 15.65 | -19.55 | 322.90 | -6.75 | 160.82 | 0.3396 | -459.6 | -416.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-15 21:58:55 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 | 1.36 | 0.00 | 0.70 | -16.99 | 326.52 | -3.13 | 169.28 | 0.2824 | 1054.0 | 833.2 | |
| 0.00 | 1.11 | 0.00 | 0.57 | -17.29 | 325.46 | -4.19 | 166.07 | 0.2912 | 858.0 | 636.4 | |
| 0.00 | 2.89 | 0.00 | 1.51 | -18.09 | 324.60 | -5.05 | 164.15 | 0.3078 | 990.0 | 861.1 | |
| 0.00 | 1.62 | 0.00 | 0.83 | -16.43 | 324.46 | -5.19 | 162.00 | 0.2820 | -853.0 | -640.5 | |
| 0.00 | 1.87 | 0.00 | 1.00 | -22.41 | 324.04 | -5.61 | 166.12 | 0.3785 | -802.0 | -583.4 | |
| 0.00 | 2.89 | 0.00 | 1.56 | -23.78 | 323.89 | -5.77 | 166.67 | 0.4005 | -699.0 | -610.6 | |
| 0.00 | 1.36 | 0.00 | 0.71 | -16.92 | 322.96 | -6.69 | 157.95 | 0.2983 | -945.0 | -684.7 | |
| 0.00 | 1.96 | 0.00 | 1.06 | -23.65 | 322.66 | -6.99 | 163.89 | 0.4035 | -763.0 | -509.9 | |
| 1.70 | 2.89 | 0.89 | 1.51 | -18.03 | 322.42 | -7.23 | 157.83 | 0.3186 | -1047.2 | -906.0 | |
| 0.00 | 2.55 | 0.00 | 1.33 | -17.87 | 322.24 | -7.41 | 157.13 | 0.3174 | -954.0 | -790.1 | |
| 0.00 | 3.74 | 0.00 | 1.95 | -17.60 | 322.06 | -7.59 | 156.28 | 0.3144 | -1075.0 | -940.3 | |
| 0.00 | 2.98 | 0.00 | 1.56 | -17.93 | 322.02 | -7.63 | 156.61 | 0.3198 | -746.0 | -675.2 | |
| 0.00 | 1.28 | 0.00 | 0.70 | -23.58 | 319.44 | -10.21 | 157.12 | 0.4196 | -806.0 | -647.1 | |
| 0.00 | 1.19 | 0.00 | 0.66 | -25.47 | 317.92 | -11.73 | 156.15 | 0.4560 | -711.0 | -522.6 | |
| 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. | |