SDO HMI 2014-04-20 02:00:34 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 | 11.62 | 0.00 | 6.72 | -14.41 | 221.93 | 29.90 | 249.67 | 0.5187 | 157.8 | 332.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 02:00:34 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 | 2.22 | 0.00 | 1.35 | -11.15 | 227.73 | 35.70 | 258.15 | 0.5872 | 807.0 | 682.8 | |
| 0.00 | 1.69 | 0.00 | 0.99 | -10.51 | 224.68 | 32.64 | 258.66 | 0.5430 | 634.0 | 610.0 | |
| 0.00 | 2.48 | 0.00 | 1.43 | -14.07 | 222.18 | 30.15 | 251.21 | 0.5166 | 758.0 | 602.3 | |
| 0.00 | 1.33 | 0.00 | 0.76 | -14.19 | 221.34 | 29.30 | 250.58 | 0.5052 | 861.0 | 603.4 | |
| 0.00 | 0.89 | 0.00 | 0.51 | -14.96 | 220.70 | 28.66 | 248.78 | 0.4991 | 585.0 | 449.9 | |
| 0.00 | 0.71 | 0.00 | 0.40 | -19.45 | 218.75 | 26.72 | 238.97 | 0.4967 | -608.0 | -454.6 | |
| 0.00 | 1.24 | 0.00 | 0.71 | -19.91 | 218.15 | 26.12 | 237.63 | 0.4920 | -579.0 | -471.7 | |
| 0.00 | 0.71 | 0.00 | 0.38 | -19.25 | 211.70 | 19.66 | 232.08 | 0.4044 | -671.0 | -626.1 | |
| 0.00 | 0.35 | 0.00 | 0.19 | -19.07 | 211.61 | 19.57 | 232.34 | 0.4016 | -367.0 | -463.2 | |
| 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. | |