SDO HMI 2014-09-04 03:00:36 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 |
| 7.87 | 70.38 | 31.36 | 429.37 | -13.32 | 96.38 | -83.14 | 104.13 | 0.9962 | 242.1 | 73.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-04 03:00:36 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 | 14.22 | 0.00 | 153.02 | -15.30 | 95.01 | -84.51 | 105.89 | 0.9986 | 312.0 | 243.5 | |
| 7.87 | 41.31 | 31.36 | 166.23 | -12.21 | 98.42 | -81.10 | 103.33 | 0.9929 | 325.4 | 167.2 | |
| 0.00 | 5.81 | 0.00 | 38.39 | -12.81 | 95.64 | -83.88 | 103.52 | 0.9975 | -500.0 | -427.2 | |
| 0.00 | 2.95 | 0.00 | 22.02 | -12.42 | 95.28 | -84.24 | 103.08 | 0.9979 | -225.0 | -289.3 | |
| 0.00 | 2.24 | 0.00 | 15.64 | -12.06 | 95.11 | -84.41 | 102.70 | 0.9980 | -336.0 | -170.6 | |
| 0.00 | 1.88 | 0.00 | 15.77 | -11.71 | 94.90 | -84.62 | 102.32 | 0.9981 | -236.0 | -171.2 | |
| 0.00 | 1.97 | 0.00 | 18.30 | -11.42 | 94.53 | -84.99 | 101.98 | 0.9985 | -174.0 | -137.1 | |
| 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. | |