SDO HMI 2011-08-26 02:59:08 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 |
| 12.84 | 90.31 | 19.46 | 139.14 | 13.43 | 292.13 | -72.17 | 78.17 | 0.9474 | -410.9 | -92.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-26 02:59:08 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 | 87.62 | 6.75 | 133.96 | 13.75 | 292.45 | -71.85 | 77.85 | 0.9456 | -466.0 | -109.5 | |
| 7.18 | -1.00 | 10.90 | -1.00 | 13.36 | 292.24 | -72.06 | 78.26 | 0.9469 | -534.4 | 999999 | |
| 1.17 | -1.00 | 1.81 | -1.00 | 13.07 | 291.93 | -72.37 | 78.54 | 0.9486 | -204.5 | 999999 | |
| 0.00 | 0.36 | 0.00 | 0.66 | 12.86 | 288.78 | -75.52 | 78.57 | 0.9642 | 187.0 | 186.2 | |
| 0.00 | 2.33 | 0.00 | 4.52 | 12.48 | 287.95 | -76.34 | 78.90 | 0.9680 | 336.0 | 292.2 | |
| 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. | |