SDO HMI 2014-09-09 08:08:51 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 |
| 9.72 | 20.34 | 6.81 | 14.18 | -12.88 | 150.79 | 40.13 | 243.32 | 0.7055 | 385.2 | 145.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-09 08:08:51 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 | 0.71 | 0.00 | 0.51 | -12.34 | 152.40 | 41.73 | 244.94 | 0.7202 | -377.0 | -331.8 | |
| 9.72 | 16.15 | 6.81 | 11.31 | -12.35 | 151.41 | 40.75 | 244.39 | 0.7093 | 753.8 | 538.8 | |
| 0.00 | 1.43 | 0.00 | 0.97 | -15.68 | 147.67 | 37.00 | 237.78 | 0.6872 | -483.0 | -458.2 | |
| 0.00 | 2.05 | 0.00 | 1.39 | -15.46 | 147.35 | 36.68 | 237.84 | 0.6823 | -494.0 | -531.9 | |
| 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. | |