SDO HMI 2011-08-16 23:59:09 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 |
| 15.03 | 34.84 | 8.35 | 19.39 | -17.42 | 112.66 | -12.22 | 153.63 | 0.4570 | 343.8 | -289.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-16 23:59:09 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 |
| 2.25 | 2.61 | 1.25 | 1.44 | -18.27 | 116.23 | -8.65 | 161.26 | 0.4466 | 832.0 | 731.0 | |
| 1.80 | 3.15 | 1.00 | 1.75 | -18.50 | 116.05 | -8.83 | 161.09 | 0.4509 | 670.2 | 666.7 | |
| 0.00 | 0.81 | 0.00 | 0.45 | -18.14 | 116.01 | -8.87 | 160.72 | 0.4458 | 667.0 | 558.2 | |
| 0.99 | 2.43 | 0.55 | 1.35 | -18.08 | 114.03 | -10.85 | 156.80 | 0.4560 | -731.5 | -636.6 | |
| 0.99 | 2.52 | 0.55 | 1.40 | -17.82 | 113.82 | -11.06 | 156.16 | 0.4536 | -935.6 | -789.6 | |
| 7.38 | 10.27 | 4.10 | 5.70 | -17.06 | 112.25 | -12.63 | 152.43 | 0.4537 | 950.5 | 440.7 | |
| 1.62 | 2.61 | 0.90 | 1.45 | -16.53 | 112.15 | -12.73 | 151.68 | 0.4471 | 895.2 | 771.0 | |
| 0.00 | 0.36 | 0.00 | 0.20 | -16.34 | 111.94 | -12.94 | 151.07 | 0.4461 | 796.0 | 718.0 | |
| 0.00 | 2.88 | 0.00 | 1.62 | -17.57 | 110.74 | -14.14 | 150.27 | 0.4717 | -846.0 | -672.1 | |
| 0.00 | 0.72 | 0.00 | 0.40 | -16.75 | 110.38 | -14.50 | 148.71 | 0.4637 | -664.0 | -488.6 | |
| 0.00 | 6.48 | 0.00 | 3.63 | -17.08 | 110.22 | -14.66 | 148.83 | 0.4694 | -859.0 | -798.0 | |
| 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. | |