SDO HMI 2011-08-11 12:59:10 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 |
| 0.00 | 7.04 | 0.00 | 3.69 | 16.52 | 180.67 | -16.39 | 56.51 | 0.3267 | -823.0 | -663.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 12:59:10 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 | 1.71 | 0.00 | 0.90 | 16.36 | 181.12 | -15.94 | 56.18 | 0.3187 | -910.0 | -720.6 | |
| 0.00 | 2.17 | 0.00 | 1.14 | 18.35 | 180.54 | -16.52 | 51.98 | 0.3441 | -788.0 | -700.9 | |
| 0.00 | 1.99 | 0.00 | 1.04 | 15.41 | 180.61 | -16.46 | 59.53 | 0.3183 | -928.0 | -658.0 | |
| 0.00 | 1.17 | 0.00 | 0.61 | 15.25 | 180.36 | -16.71 | 60.33 | 0.3206 | -666.0 | -516.9 | |
| 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. | |