SDO HMI 2011-11-25 19:58:57 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 |
| 15.74 | 81.55 | 13.39 | 68.85 | -23.83 | 283.49 | 49.17 | 238.68 | 0.8121 | 558.6 | 271.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-25 19:58:57 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 |
| 11.29 | 75.64 | 9.60 | 64.30 | -23.69 | 283.85 | 49.53 | 239.01 | 0.8148 | 857.2 | 300.7 | |
| 4.45 | -1.00 | 3.79 | -1.00 | -24.12 | 283.82 | 49.50 | 238.51 | 0.8161 | 647.2 | 999999 | |
| 0.00 | 1.45 | 0.00 | 1.17 | -21.71 | 281.83 | 47.51 | 240.52 | 0.7893 | 587.0 | 447.0 | |
| 0.00 | 0.77 | 0.00 | 0.61 | -21.83 | 281.46 | 47.14 | 240.23 | 0.7863 | 644.0 | 531.2 | |
| 0.00 | 1.63 | 0.00 | 1.24 | -23.28 | 278.40 | 44.08 | 237.09 | 0.7635 | -433.0 | -293.4 | |
| 0.00 | 1.03 | 0.00 | 0.77 | -27.00 | 275.64 | 41.32 | 231.24 | 0.7569 | -598.0 | -456.1 | |
| 0.00 | 1.03 | 0.00 | 0.76 | -27.94 | 273.86 | 39.55 | 229.09 | 0.7467 | -609.0 | -486.5 | |
| 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. | |