SDO HMI 2011-04-25 21:59:06 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 |
| 10.22 | 26.41 | 5.64 | 14.64 | 21.04 | 187.51 | 6.63 | 346.13 | 0.4497 | 91.6 | -234.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-25 21:59:06 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 | 1.42 | 0.00 | 0.80 | 21.42 | 189.91 | 9.03 | 341.63 | 0.4652 | -579.0 | -408.8 | |
| 0.00 | 0.89 | 0.00 | 0.50 | 21.02 | 189.85 | 8.97 | 341.44 | 0.4590 | -695.0 | -572.5 | |
| 0.00 | 2.49 | 0.00 | 1.40 | 21.79 | 189.77 | 8.88 | 342.15 | 0.4699 | -764.0 | -550.0 | |
| 0.00 | 1.60 | 0.00 | 0.89 | 20.92 | 189.68 | 8.80 | 341.69 | 0.4567 | -852.0 | -672.6 | |
| 0.00 | 2.31 | 0.00 | 1.29 | 21.24 | 188.75 | 7.87 | 343.72 | 0.4571 | 298.0 | 254.7 | |
| 0.00 | 0.98 | 0.00 | 0.54 | 20.97 | 188.51 | 7.63 | 344.02 | 0.4521 | -613.0 | -519.8 | |
| 0.00 | 0.80 | 0.00 | 0.44 | 21.07 | 188.32 | 7.44 | 344.46 | 0.4527 | -657.0 | -526.7 | |
| 0.00 | 2.76 | 0.00 | 1.52 | 20.63 | 187.78 | 6.89 | 345.28 | 0.4439 | -742.0 | -578.5 | |
| 0.00 | 1.69 | 0.00 | 0.94 | 21.65 | 186.13 | 5.25 | 349.16 | 0.4538 | 814.0 | 546.3 | |
| 10.22 | 11.47 | 5.64 | 6.32 | 20.81 | 185.97 | 5.09 | 349.11 | 0.4404 | 909.8 | 613.4 | |
| 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. | |