SDO HMI 2011-12-10 03:58:56 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 |
| 18.49 | 85.99 | 18.34 | 84.57 | 18.48 | 103.18 | 57.77 | 291.69 | 0.8654 | -397.3 | -159.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-10 03:58:56 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 |
| 1.87 | 6.31 | 1.95 | 6.55 | 17.50 | 105.40 | 59.99 | 290.13 | 0.8815 | 367.1 | 369.2 | |
| 2.30 | -1.00 | 2.39 | -1.00 | 17.28 | 105.28 | 59.87 | 289.91 | 0.8803 | 464.7 | 999999 | |
| 0.00 | 1.02 | 0.00 | 1.05 | 17.44 | 104.93 | 59.52 | 290.15 | 0.8778 | 440.0 | 425.9 | |
| 14.32 | 77.81 | 14.00 | 76.22 | 18.58 | 103.02 | 57.61 | 291.83 | 0.8643 | -770.0 | -194.5 | |
| 0.00 | 0.85 | 0.00 | 0.75 | 19.69 | 98.54 | 53.13 | 294.24 | 0.8283 | 433.0 | 386.4 | |
| 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. | |