| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.85 | 0.00 | 4.01 | 14.12 | 0.66 | 43.51 | 284.74 | 0.6933 | -535.7 | -425.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-18 06:00:30 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 | 0.26 | 0.00 | 0.20 | 12.12 | 5.73 | 48.58 | 281.22 | 0.7498 | -633.0 | -549.7 | |
| 0.00 | 1.22 | 0.00 | 0.88 | 8.08 | 3.98 | 46.83 | 275.80 | 0.7281 | -624.0 | -454.1 | |
| 0.00 | 1.05 | 0.00 | 0.73 | 17.76 | 1.55 | 44.41 | 289.56 | 0.7095 | -109.0 | -167.6 | |
| 0.00 | 1.05 | 0.00 | 0.71 | 15.44 | 0.02 | 42.87 | 286.61 | 0.6867 | -567.0 | -453.8 | |
| 0.00 | 1.31 | 0.00 | 0.87 | 15.53 | 358.62 | 41.47 | 287.04 | 0.6696 | -606.0 | -547.4 | |
| 0.00 | 0.96 | 0.00 | 0.62 | 15.55 | 356.86 | 39.71 | 287.50 | 0.6477 | -675.0 | -449.2 | |
| 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. | |