SDO HMI 2014-08-06 04:00:39 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 |
| 11.03 | 23.86 | 9.58 | 20.50 | -20.62 | 250.87 | 48.65 | 239.34 | 0.8189 | 419.2 | 77.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-06 04:00:39 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 |
| 7.87 | 10.94 | 6.83 | 9.51 | -20.11 | 251.69 | 49.47 | 240.30 | 0.8238 | 570.0 | 321.8 | |
| 2.71 | 4.97 | 2.36 | 4.33 | -20.50 | 251.56 | 49.34 | 239.81 | 0.8242 | 538.4 | 324.3 | |
| 0.00 | 0.63 | 0.00 | 0.54 | -20.40 | 250.82 | 48.60 | 239.58 | 0.8175 | 515.0 | 436.7 | |
| 0.45 | 1.45 | 0.39 | 1.24 | -21.03 | 250.59 | 48.37 | 238.77 | 0.8181 | 233.2 | 249.4 | |
| 0.00 | 0.90 | 0.00 | 0.76 | -20.26 | 250.27 | 48.05 | 239.48 | 0.8121 | 572.0 | 478.3 | |
| 0.00 | 0.45 | 0.00 | 0.38 | -20.25 | 249.73 | 47.51 | 239.24 | 0.8073 | 426.0 | 443.6 | |
| 0.00 | 3.71 | 0.00 | 3.08 | -21.97 | 248.58 | 46.36 | 236.72 | 0.8049 | -744.0 | -581.7 | |
| 0.00 | 0.81 | 0.00 | 0.66 | -22.62 | 247.24 | 45.02 | 235.30 | 0.7964 | 274.0 | 242.9 | |
| 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. | |