SDO HMI 2011-11-17 10:58:57 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 |
| 15.46 | 49.98 | 39.08 | 135.72 | -15.07 | 266.54 | -78.18 | 105.88 | 0.9830 | 252.4 | -11.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-17 10:58:57 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 | 1.80 | 0.00 | 4.33 | -17.67 | 268.15 | -76.57 | 108.68 | 0.9792 | 265.0 | 254.4 | |
| 2.75 | 6.53 | 6.61 | 15.72 | -17.27 | 268.01 | -76.71 | 108.25 | 0.9795 | 260.6 | 127.6 | |
| 1.37 | 4.98 | 3.06 | 11.20 | -16.54 | 268.93 | -75.79 | 107.62 | 0.9760 | 195.8 | 201.7 | |
| 0.00 | 0.77 | 0.00 | 1.72 | -16.29 | 268.97 | -75.75 | 107.37 | 0.9758 | -19.0 | 7.1 | |
| 0.00 | 1.89 | 0.00 | 7.93 | -17.83 | 262.72 | -81.99 | 108.30 | 0.9935 | 177.0 | 156.7 | |
| 11.34 | 28.86 | 29.41 | 76.29 | -14.25 | 266.85 | -77.87 | 105.07 | 0.9822 | 300.8 | -59.4 | |
| 0.00 | 1.46 | 0.00 | 4.09 | -13.72 | 265.81 | -78.91 | 104.43 | 0.9852 | -434.0 | -349.4 | |
| 0.00 | 3.69 | 0.00 | 14.44 | -13.85 | 263.00 | -81.72 | 104.33 | 0.9923 | -34.0 | -142.0 | |
| 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. | |