SDO HMI 2011-07-23 17:59:11 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 | 7.89 | 0.00 | 5.04 | 5.65 | 46.34 | -39.24 | 87.26 | 0.6324 | -396.4 | -318.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-07-23 17:59:11 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 | 2.54 | 0.00 | 1.60 | 5.91 | 47.12 | -38.46 | 86.88 | 0.6218 | -456.0 | -296.3 | |
| 0.00 | 0.91 | 0.00 | 0.58 | 6.41 | 46.68 | -38.89 | 86.08 | 0.6277 | -653.0 | -563.5 | |
| 0.00 | 1.72 | 0.00 | 1.10 | 6.00 | 46.48 | -39.09 | 86.73 | 0.6304 | -838.0 | -656.7 | |
| 0.00 | 1.54 | 0.00 | 0.98 | 4.87 | 46.49 | -39.09 | 88.53 | 0.6307 | -684.0 | -520.2 | |
| 0.00 | 1.18 | 0.00 | 0.78 | 5.07 | 44.11 | -41.47 | 88.09 | 0.6623 | 649.0 | 547.7 | |
| 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. | |