SDO HMI 2014-03-04 23:00:28 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 | 6.91 | 0.00 | 4.23 | -17.01 | 44.92 | -35.50 | 109.06 | 0.5896 | 26.5 | 88.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-04 23:00:28 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 | 1.99 | 0.00 | 1.20 | -16.83 | 45.98 | -34.44 | 109.10 | 0.5750 | 274.0 | 195.5 | |
| 0.00 | 1.04 | 0.00 | 0.63 | -17.05 | 45.74 | -34.67 | 109.40 | 0.5789 | 734.0 | 655.5 | |
| 0.00 | 1.38 | 0.00 | 0.84 | -16.50 | 45.63 | -34.78 | 108.42 | 0.5788 | 767.0 | 565.8 | |
| 0.00 | 0.60 | 0.00 | 0.37 | -17.54 | 44.45 | -35.97 | 109.78 | 0.5974 | -364.0 | -315.6 | |
| 0.00 | 1.04 | 0.00 | 0.65 | -17.50 | 43.10 | -37.32 | 109.30 | 0.6149 | -700.0 | -582.3 | |
| 0.00 | 0.86 | 0.00 | 0.54 | -17.19 | 43.01 | -37.40 | 108.77 | 0.6152 | -552.0 | -464.8 | |
| 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. | |