SDO HMI 2011-12-08 22:58:56 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 |
| 12.78 | 58.21 | 16.31 | 74.44 | 8.61 | 354.49 | -66.85 | 80.61 | 0.9227 | -318.8 | -26.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-08 22:58:56 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 |
| 9.63 | 41.93 | 11.76 | 51.48 | 8.75 | 355.56 | -65.78 | 80.39 | 0.9159 | -632.5 | -124.2 | |
| 0.68 | 2.98 | 0.89 | 3.89 | 8.81 | 353.86 | -67.48 | 80.45 | 0.9273 | -166.8 | -91.1 | |
| 0.00 | 4.18 | 0.00 | 5.52 | 8.45 | 353.59 | -67.74 | 80.85 | 0.9289 | 69.0 | 46.5 | |
| 2.47 | 7.93 | 3.66 | 11.70 | 7.98 | 351.07 | -70.26 | 81.51 | 0.9440 | 317.9 | 408.7 | |
| 0.00 | 0.68 | 0.00 | 1.04 | 8.64 | 350.62 | -70.72 | 80.84 | 0.9467 | 158.0 | 96.8 | |
| 0.00 | 0.51 | 0.00 | 0.81 | 8.73 | 349.82 | -71.51 | 80.78 | 0.9511 | 40.0 | 44.5 | |
| 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. | |