| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 49.63 | 307.44 | 35.23 | 218.05 | 18.04 | 166.16 | 40.18 | 301.03 | 0.7181 | -795.2 | -316.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-25 02:00:35 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 |
| 48.38 | 298.27 | 34.38 | 211.81 | 18.02 | 166.25 | 40.27 | 300.95 | 0.7190 | -979.4 | -340.4 | |
| 0.00 | 1.25 | 0.00 | 0.86 | 18.91 | 163.91 | 37.92 | 303.51 | 0.6996 | 539.0 | 459.4 | |
| 1.25 | 3.38 | 0.85 | 2.30 | 17.99 | 163.15 | 37.16 | 302.83 | 0.6861 | 625.9 | 487.9 | |
| 0.00 | 2.58 | 0.00 | 1.75 | 18.17 | 162.87 | 36.89 | 303.25 | 0.6843 | 669.0 | 612.3 | |
| 0.00 | 1.25 | 0.00 | 0.85 | 20.05 | 162.37 | 36.38 | 305.98 | 0.6908 | 287.0 | 251.3 | |
| 0.00 | 0.71 | 0.00 | 0.48 | 19.84 | 162.31 | 36.33 | 305.76 | 0.6890 | 450.0 | 382.2 | |
| 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. | |