SDO HMI 2011-12-06 17:58:56 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 | 6.31 | 0.00 | 4.28 | 12.20 | 48.88 | -41.57 | 72.19 | 0.6836 | 555.8 | 537.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-06 17:58:56 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 | 1.28 | 0.00 | 0.86 | 11.87 | 49.51 | -40.94 | 72.44 | 0.6750 | 688.0 | 601.3 | |
| 0.00 | 1.62 | 0.00 | 1.09 | 11.72 | 49.34 | -41.12 | 72.72 | 0.6767 | 638.0 | 621.8 | |
| 0.00 | 0.43 | 0.00 | 0.29 | 11.93 | 49.26 | -41.19 | 72.44 | 0.6783 | 206.0 | 265.2 | |
| 0.00 | 1.70 | 0.00 | 1.15 | 11.90 | 48.74 | -41.71 | 72.65 | 0.6845 | 670.0 | 570.5 | |
| 0.00 | 1.28 | 0.00 | 0.89 | 13.57 | 47.78 | -42.67 | 70.62 | 0.7009 | 577.0 | 416.7 | |
| 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. | |