SDO HMI 2014-04-19 18:00:34 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 | 10.45 | 0.00 | 6.35 | -21.81 | 164.41 | -32.05 | 121.28 | 0.5808 | -583.7 | -478.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-19 18:00:34 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 | 1.15 | 0.00 | 0.69 | -27.78 | 168.58 | -27.87 | 133.51 | 0.5725 | -704.0 | -579.7 | |
| 0.00 | 2.48 | 0.00 | 1.46 | -24.46 | 168.99 | -27.47 | 128.88 | 0.5414 | -691.0 | -564.4 | |
| 0.00 | 1.86 | 0.00 | 1.08 | -16.07 | 166.30 | -30.15 | 112.47 | 0.5245 | -630.0 | -516.5 | |
| 0.00 | 1.06 | 0.00 | 0.66 | -20.41 | 161.10 | -35.36 | 117.09 | 0.6114 | -670.0 | -576.6 | |
| 0.00 | 1.15 | 0.00 | 0.75 | -25.52 | 159.46 | -37.00 | 123.77 | 0.6556 | -206.0 | -136.2 | |
| 0.00 | 1.95 | 0.00 | 1.21 | -19.48 | 161.18 | -35.27 | 115.67 | 0.6063 | -618.0 | -447.3 | |
| 0.00 | 0.80 | 0.00 | 0.50 | -20.18 | 160.81 | -35.65 | 116.58 | 0.6140 | -567.0 | -471.6 | |
| 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. | |