SDO HMI 2011-12-08 09:58:56 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 |
| 4.09 | 21.23 | 2.26 | 11.75 | -25.76 | 74.39 | 5.90 | 192.02 | 0.4470 | -278.3 | -377.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-08 09:58:56 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 |
| 0.00 | 1.62 | 0.00 | 0.90 | -25.45 | 79.17 | 10.68 | 201.28 | 0.4629 | 961.0 | 775.0 | |
| 0.77 | 2.05 | 0.42 | 1.13 | -24.60 | 77.78 | 9.28 | 199.42 | 0.4430 | 952.2 | 707.5 | |
| 0.00 | 0.43 | 0.00 | 0.24 | -25.25 | 76.54 | 8.04 | 196.53 | 0.4467 | 587.0 | 642.6 | |
| 3.32 | 6.82 | 1.84 | 3.77 | -25.65 | 73.99 | 5.50 | 191.29 | 0.4430 | -997.6 | -747.8 | |
| 0.00 | 1.36 | 0.00 | 0.76 | -27.33 | 74.01 | 5.51 | 190.54 | 0.4687 | -599.0 | -511.5 | |
| 0.00 | 1.36 | 0.00 | 0.75 | -25.48 | 73.85 | 5.36 | 191.09 | 0.4400 | -898.0 | -782.9 | |
| 0.00 | 1.36 | 0.00 | 0.75 | -25.61 | 73.66 | 5.17 | 190.65 | 0.4415 | -922.0 | -693.2 | |
| 0.00 | 4.18 | 0.00 | 2.32 | -26.37 | 72.70 | 4.21 | 188.43 | 0.4507 | -747.0 | -564.8 | |
| 0.00 | 2.05 | 0.00 | 1.13 | -25.58 | 72.64 | 4.15 | 188.60 | 0.4383 | -754.0 | -604.0 | |
| 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. | |