SDO HMI 2011-08-27 00:59:08 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 |
| 5.66 | 12.65 | 3.12 | 6.97 | -18.35 | 357.00 | 4.82 | 190.50 | 0.4388 | 181.9 | 226.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-27 00:59:08 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 |
| 4.49 | 7.09 | 2.48 | 3.91 | -18.44 | 357.83 | 5.64 | 192.23 | 0.4423 | 824.1 | 742.7 | |
| 0.00 | 1.88 | 0.00 | 1.04 | -18.21 | 357.56 | 5.38 | 191.79 | 0.4378 | 886.0 | 642.4 | |
| 0.00 | 0.90 | 0.00 | 0.49 | -18.69 | 355.49 | 3.31 | 187.17 | 0.4399 | -586.0 | -532.6 | |
| 1.17 | 1.79 | 0.64 | 0.99 | -18.49 | 355.39 | 3.21 | 187.02 | 0.4366 | -751.0 | -742.3 | |
| 0.00 | 0.99 | 0.00 | 0.54 | -17.41 | 354.29 | 2.11 | 184.84 | 0.4178 | -750.0 | -633.4 | |
| 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. | |