SDO HMI 2011-02-27 00:58:58 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 |
| 11.28 | 20.84 | 7.67 | 14.26 | -21.93 | 181.60 | -42.64 | 114.40 | 0.6921 | 316.0 | -138.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-27 00:58:58 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 | 1.29 | 0.00 | 0.83 | -20.02 | 185.87 | -38.37 | 112.98 | 0.6358 | 598.0 | 487.0 | |
| 11.28 | 12.83 | 7.67 | 8.72 | -21.56 | 181.94 | -42.30 | 113.99 | 0.6874 | 788.1 | 572.6 | |
| 0.00 | 1.21 | 0.00 | 0.83 | -22.18 | 181.45 | -42.79 | 114.71 | 0.6947 | 411.0 | 371.1 | |
| 0.00 | 1.03 | 0.00 | 0.72 | -22.97 | 180.47 | -43.76 | 115.51 | 0.7080 | -756.0 | -546.0 | |
| 0.00 | 1.38 | 0.00 | 0.97 | -23.03 | 180.00 | -44.24 | 115.45 | 0.7134 | -771.0 | -666.6 | |
| 0.00 | 1.98 | 0.00 | 1.40 | -23.23 | 179.78 | -44.46 | 115.66 | 0.7163 | -774.0 | -654.4 | |
| 0.00 | 1.12 | 0.00 | 0.79 | -23.13 | 179.69 | -44.55 | 115.49 | 0.7171 | -433.0 | -337.8 | |
| 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. | |