SDO HMI 2014-04-20 15:00:34 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 | 19.60 | 0.00 | 10.87 | -21.08 | 163.48 | -21.43 | 129.50 | 0.4443 | -738.5 | -583.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 15:00:34 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 | 0.89 | 0.00 | 0.49 | -24.52 | 167.99 | -16.91 | 141.69 | 0.4288 | -702.0 | -551.7 | |
| 0.00 | 2.93 | 0.00 | 1.55 | -18.26 | 167.94 | -16.97 | 129.74 | 0.3620 | -880.0 | -697.3 | |
| 0.00 | 1.42 | 0.00 | 0.77 | -21.15 | 167.44 | -17.46 | 134.94 | 0.3971 | -706.0 | -560.9 | |
| 0.00 | 2.39 | 0.00 | 1.31 | -23.41 | 167.08 | -17.83 | 138.46 | 0.4255 | -645.0 | -552.9 | |
| 0.00 | 1.06 | 0.00 | 0.58 | -19.39 | 164.99 | -19.92 | 127.98 | 0.4094 | -699.0 | -567.3 | |
| 0.00 | 1.06 | 0.00 | 0.58 | -19.98 | 163.99 | -20.92 | 127.91 | 0.4271 | -798.0 | -608.7 | |
| 0.00 | 0.98 | 0.00 | 0.56 | -26.89 | 162.09 | -22.81 | 137.44 | 0.5132 | -742.0 | -564.5 | |
| 0.00 | 0.80 | 0.00 | 0.45 | -22.16 | 161.55 | -23.36 | 129.18 | 0.4756 | -774.0 | -590.1 | |
| 0.00 | 1.95 | 0.00 | 1.07 | -16.88 | 162.18 | -22.72 | 119.58 | 0.4268 | -877.0 | -741.1 | |
| 0.00 | 2.84 | 0.00 | 1.57 | -18.00 | 161.55 | -23.36 | 121.30 | 0.4431 | -804.0 | -508.5 | |
| 0.00 | 0.80 | 0.00 | 0.45 | -20.60 | 161.11 | -23.79 | 125.90 | 0.4682 | -696.0 | -612.9 | |
| 0.00 | 1.42 | 0.00 | 0.87 | -28.18 | 155.55 | -29.35 | 132.88 | 0.5919 | -612.0 | -456.8 | |
| 0.00 | 1.06 | 0.00 | 0.62 | -22.43 | 156.98 | -27.93 | 125.30 | 0.5326 | -666.0 | -493.7 | |
| 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. | |