SDO HMI 2014-09-12 16:00:35 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 |
| 4.09 | 15.74 | 6.82 | 36.60 | 13.93 | 347.72 | -79.01 | 77.24 | 0.9762 | -14.2 | 134.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-12 16:00:35 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 |
| 4.09 | 5.96 | 6.82 | 9.95 | 12.55 | 352.89 | -73.84 | 79.05 | 0.9562 | -219.6 | -53.8 | |
| 0.00 | 4.18 | 0.00 | 10.06 | 14.17 | 347.27 | -79.46 | 76.97 | 0.9793 | 301.0 | 290.6 | |
| 0.00 | 1.42 | 0.00 | 3.91 | 15.20 | 345.68 | -81.06 | 75.80 | 0.9842 | -121.0 | -125.1 | |
| 0.00 | 0.27 | 0.00 | 0.66 | 14.01 | 346.97 | -79.77 | 77.11 | 0.9804 | 415.0 | 417.3 | |
| 0.00 | 0.80 | 0.00 | 2.19 | 14.75 | 345.62 | -81.11 | 76.25 | 0.9844 | 347.0 | 295.0 | |
| 0.00 | 0.80 | 0.00 | 2.31 | 14.46 | 345.06 | -81.68 | 76.50 | 0.9861 | 346.0 | 279.9 | |
| 0.00 | 2.31 | 0.00 | 7.52 | 14.37 | 344.05 | -82.68 | 76.50 | 0.9888 | 28.0 | 22.3 | |
| 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. | |