SDO HMI 2014-08-04 22:00:39 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 |
| 0.00 | 8.97 | 0.00 | 4.51 | 6.09 | 208.47 | -10.28 | 86.30 | 0.1790 | -11.5 | -3.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-04 22:00:39 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 |
| 0.00 | 2.17 | 0.00 | 1.08 | 6.76 | 214.38 | -4.37 | 80.42 | 0.0771 | -932.0 | -771.9 | |
| 0.00 | 1.18 | 0.00 | 0.58 | 6.75 | 214.04 | -4.71 | 81.09 | 0.0829 | -792.0 | -620.0 | |
| 0.00 | 1.45 | 0.00 | 0.73 | 8.02 | 208.20 | -10.54 | 78.69 | 0.1856 | 954.0 | 728.1 | |
| 0.00 | 1.18 | 0.00 | 0.59 | 6.06 | 207.72 | -11.03 | 89.31 | 0.1911 | 761.0 | 576.3 | |
| 0.00 | 1.18 | 0.00 | 0.60 | 4.41 | 203.23 | -15.52 | 95.28 | 0.2690 | -879.0 | -606.8 | |
| 0.00 | 1.81 | 0.00 | 0.93 | 4.47 | 202.18 | -16.56 | 94.64 | 0.2864 | 819.0 | 719.0 | |
| 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. | |