SDO HMI 2011-12-12 04:58:55 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 |
| 4.00 | 13.89 | 4.18 | 14.56 | -18.90 | 78.76 | 60.25 | 248.71 | 0.8833 | 17.1 | 243.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-12 04:58:55 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 |
| 0.00 | 1.36 | 0.00 | 1.47 | -18.00 | 79.77 | 61.26 | 249.91 | 0.8899 | 461.0 | 398.9 | |
| 0.00 | 0.77 | 0.00 | 0.82 | -18.21 | 79.71 | 61.20 | 249.66 | 0.8897 | 423.0 | 404.6 | |
| 0.00 | 1.45 | 0.00 | 1.57 | -18.96 | 79.85 | 61.33 | 248.85 | 0.8916 | 454.0 | 322.6 | |
| 0.00 | 3.58 | 0.00 | 3.76 | -18.41 | 78.86 | 60.35 | 249.30 | 0.8835 | 718.0 | 545.7 | |
| 2.47 | 3.41 | 2.59 | 3.58 | -19.19 | 78.76 | 60.25 | 248.40 | 0.8838 | -252.6 | -120.0 | |
| 1.53 | 2.21 | 1.59 | 2.29 | -19.82 | 78.14 | 59.63 | 247.58 | 0.8800 | -394.8 | -390.6 | |
| 0.00 | 1.11 | 0.00 | 1.07 | -19.42 | 75.97 | 57.46 | 247.57 | 0.8621 | -617.0 | -515.9 | |
| 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. | |