SDO HMI 2011-02-12 07:58:57 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 |
| 18.49 | 37.67 | 11.12 | 22.71 | 19.37 | 34.52 | -23.43 | 41.05 | 0.5732 | -468.3 | -280.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-12 07:58:57 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 |
| 13.96 | 29.54 | 8.39 | 17.72 | 19.41 | 35.09 | -22.86 | 40.34 | 0.5682 | -946.4 | -570.8 | |
| 1.88 | -1.00 | 1.13 | -1.00 | 19.07 | 34.80 | -23.15 | 41.12 | 0.5673 | -537.6 | 999999 | |
| 2.65 | 3.08 | 1.60 | 1.86 | 18.97 | 34.17 | -23.79 | 42.00 | 0.5723 | -469.7 | -191.6 | |
| 0.00 | 1.46 | 0.00 | 0.88 | 18.97 | 33.48 | -24.47 | 42.79 | 0.5789 | 271.0 | 291.9 | |
| 0.00 | 1.11 | 0.00 | 0.68 | 18.78 | 32.72 | -25.24 | 43.89 | 0.5844 | 579.0 | 563.3 | |
| 0.00 | 1.88 | 0.00 | 1.19 | 20.35 | 30.47 | -27.48 | 44.37 | 0.6210 | 679.0 | 518.0 | |
| 0.00 | 0.60 | 0.00 | 0.38 | 20.32 | 29.37 | -28.58 | 45.51 | 0.6313 | 689.0 | 589.9 | |
| 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. | |