| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 9.57 | 0.00 | 5.36 | -20.07 | 310.79 | 6.74 | 193.66 | 0.4715 | -248.1 | -217.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-21 23:00:34 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 | 1.24 | 0.00 | 0.69 | -19.04 | 313.39 | 9.34 | 199.27 | 0.4667 | 692.0 | 555.9 | |
| 0.00 | 1.06 | 0.00 | 0.59 | -18.77 | 313.08 | 9.03 | 198.88 | 0.4611 | 734.0 | 650.2 | |
| 0.00 | 0.44 | 0.00 | 0.25 | -22.65 | 311.64 | 7.58 | 193.82 | 0.5117 | -467.0 | -563.6 | |
| 0.00 | 2.48 | 0.00 | 1.40 | -20.90 | 311.41 | 7.36 | 194.34 | 0.4851 | -537.0 | -458.1 | |
| 0.00 | 0.80 | 0.00 | 0.43 | -15.16 | 310.62 | 6.56 | 196.29 | 0.3952 | -449.0 | -413.6 | |
| 0.00 | 0.89 | 0.00 | 0.51 | -22.36 | 310.50 | 6.45 | 191.96 | 0.5036 | -556.0 | -429.0 | |
| 0.00 | 0.89 | 0.00 | 0.50 | -20.34 | 308.61 | 4.56 | 189.20 | 0.4681 | -719.0 | -563.2 | |
| 0.00 | 1.77 | 0.00 | 0.99 | -20.57 | 307.85 | 3.79 | 187.61 | 0.4699 | -683.0 | -481.9 | |
| 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. | |