SDO HMI 2011-12-14 14:58:55 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 |
| 30.04 | 144.57 | 15.34 | 73.83 | 8.36 | 357.36 | 10.66 | 311.04 | 0.2437 | -984.3 | -365.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-14 14:58:55 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 |
| 27.06 | 134.11 | 13.82 | 68.52 | 8.35 | 357.54 | 10.84 | 310.45 | 0.2457 | -1404.3 | -400.2 | |
| 1.70 | 2.21 | 0.87 | 1.13 | 8.35 | 356.84 | 10.14 | 312.32 | 0.2367 | -945.3 | -969.7 | |
| 1.28 | 2.04 | 0.65 | 1.04 | 8.05 | 356.35 | 9.65 | 312.76 | 0.2271 | -1073.1 | -777.8 | |
| 0.00 | 1.53 | 0.00 | 0.78 | 8.22 | 355.72 | 9.02 | 315.26 | 0.2215 | -899.0 | -752.5 | |
| 0.00 | 1.70 | 0.00 | 0.86 | 9.09 | 353.63 | 6.93 | 325.21 | 0.2098 | 920.0 | 731.2 | |
| 0.00 | 1.79 | 0.00 | 0.90 | 8.58 | 353.38 | 6.68 | 324.75 | 0.2002 | 985.0 | 704.5 | |
| 0.00 | 1.19 | 0.00 | 0.60 | 8.61 | 353.05 | 6.35 | 326.19 | 0.1974 | 885.0 | 646.3 | |
| 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. | |