SDO HMI 2011-11-20 01:58:57 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 |
| 16.65 | 41.36 | 8.63 | 21.37 | 17.75 | 316.22 | 6.13 | 339.38 | 0.2884 | -473.7 | -230.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-20 01:58:57 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 |
| 0.00 | 0.94 | 0.00 | 0.48 | 13.07 | 318.15 | 8.06 | 323.87 | 0.2328 | -695.0 | -569.4 | |
| 0.00 | 2.66 | 0.00 | 1.38 | 18.25 | 317.95 | 7.86 | 334.72 | 0.3055 | -921.0 | -729.3 | |
| 8.24 | 11.76 | 4.29 | 6.11 | 18.53 | 317.59 | 7.50 | 336.14 | 0.3072 | -1011.9 | -847.6 | |
| 0.00 | 1.63 | 0.00 | 0.84 | 17.79 | 317.15 | 7.06 | 336.36 | 0.2931 | -1063.0 | -875.5 | |
| 0.00 | 4.20 | 0.00 | 2.18 | 18.10 | 316.97 | 6.88 | 337.32 | 0.2966 | -1057.0 | -786.5 | |
| 0.00 | 1.63 | 0.00 | 0.82 | 11.48 | 315.91 | 5.82 | 328.11 | 0.1890 | -948.0 | -703.9 | |
| 2.66 | 3.86 | 1.37 | 1.99 | 17.76 | 315.86 | 5.77 | 340.25 | 0.2847 | -824.1 | -771.3 | |
| 5.75 | 12.87 | 2.97 | 6.66 | 18.32 | 315.29 | 5.20 | 342.70 | 0.2904 | 874.7 | 861.3 | |
| 0.00 | 0.69 | 0.00 | 0.35 | 17.13 | 311.56 | 1.47 | 354.54 | 0.2582 | -852.0 | -658.8 | |
| 0.00 | 1.12 | 0.00 | 0.56 | 13.42 | 306.69 | -3.40 | 16.66 | 0.2022 | 1004.0 | 821.9 | |
| 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. | |