| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.53 | 0.00 | 3.69 | -20.50 | 169.85 | 31.59 | 227.74 | 0.6663 | 590.5 | 468.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-07 06:00:36 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 | 1.25 | 0.00 | 0.86 | -21.73 | 171.60 | 33.35 | 227.66 | 0.6931 | 605.0 | 451.5 | |
| 0.00 | 2.05 | 0.00 | 1.40 | -21.48 | 171.38 | 33.13 | 227.77 | 0.6891 | 656.0 | 509.6 | |
| 0.00 | 1.07 | 0.00 | 0.65 | -13.06 | 166.50 | 28.24 | 234.19 | 0.5706 | 576.0 | 429.6 | |
| 0.00 | 1.16 | 0.00 | 0.78 | -23.58 | 167.95 | 29.70 | 222.40 | 0.6758 | 525.0 | 445.5 | |
| 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. | |