SDO HMI 2011-12-06 20:58:56 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 |
| 28.65 | 47.23 | 16.05 | 26.51 | -25.20 | 76.49 | -12.30 | 155.88 | 0.4726 | -8.4 | -85.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-06 20:58:56 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 |
| 13.47 | 17.39 | 7.49 | 9.68 | -24.94 | 78.37 | -10.43 | 158.88 | 0.4574 | 996.5 | 583.5 | |
| 2.05 | 3.58 | 1.14 | 1.99 | -24.58 | 77.18 | -11.62 | 156.40 | 0.4594 | 901.0 | 667.4 | |
| 0.00 | 2.56 | 0.00 | 1.43 | -24.52 | 76.58 | -12.21 | 155.29 | 0.4623 | 921.0 | 727.0 | |
| 2.64 | 20.80 | 1.49 | 11.76 | -25.27 | 75.24 | -13.56 | 153.76 | 0.4815 | -1035.8 | -646.5 | |
| 0.00 | 0.85 | 0.00 | 0.49 | -27.75 | 74.90 | -13.90 | 155.61 | 0.5168 | -782.0 | -617.9 | |
| 10.49 | -4.00 | 5.93 | -4.00 | -25.50 | 75.07 | -13.72 | 153.73 | 0.4856 | -990.5 | 999999 | |
| 0.00 | 0.94 | 0.00 | 0.53 | -25.53 | 74.60 | -14.20 | 152.99 | 0.4893 | -683.0 | -499.0 | |
| 0.00 | 1.11 | 0.00 | 0.63 | -25.76 | 73.96 | -14.83 | 152.23 | 0.4968 | -698.0 | -629.8 | |
| 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. | |