SDO HMI 2011-01-10 23:58:55 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 |
| 8.41 | 17.42 | 6.90 | 14.38 | 23.32 | 76.96 | -46.70 | 56.65 | 0.8024 | -287.1 | -8.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-10 23:58:55 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 |
| 8.41 | 11.47 | 6.90 | 9.42 | 23.57 | 77.39 | -46.27 | 56.16 | 0.7998 | -688.3 | -373.5 | |
| 0.00 | 1.02 | 0.00 | 0.84 | 22.98 | 76.67 | -46.99 | 57.17 | 0.8034 | 225.0 | 239.4 | |
| 0.00 | 0.68 | 0.00 | 0.56 | 22.39 | 76.85 | -46.81 | 57.77 | 0.7993 | 526.0 | 488.9 | |
| 0.00 | 1.02 | 0.00 | 0.84 | 22.60 | 76.56 | -47.10 | 57.66 | 0.8027 | 385.0 | 270.7 | |
| 0.00 | 1.87 | 0.00 | 1.55 | 22.91 | 76.33 | -47.33 | 57.42 | 0.8061 | -224.0 | -176.5 | |
| 0.00 | 1.36 | 0.00 | 1.17 | 23.09 | 74.85 | -48.81 | 57.89 | 0.8195 | 421.0 | 385.3 | |
| 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. | |