SDO HMI 2011-11-20 09:58:57 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 |
| 28.73 | 159.65 | 55.57 | 303.17 | 14.76 | 230.88 | -74.84 | 75.29 | 0.9642 | -202.8 | -78.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-11-20 09:58:57 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 |
| 13.38 | 114.27 | 21.37 | 186.42 | 14.20 | 233.81 | -71.91 | 75.80 | 0.9520 | -597.0 | -127.7 | |
| 4.38 | -1.00 | 7.28 | -1.00 | 14.26 | 233.04 | -72.68 | 75.76 | 0.9559 | -117.6 | 999999 | |
| 2.06 | -1.00 | 3.47 | -1.00 | 14.34 | 232.76 | -72.96 | 75.68 | 0.9573 | 166.5 | 999999 | |
| 0.94 | 8.15 | 1.59 | 13.68 | 12.39 | 232.71 | -73.01 | 77.73 | 0.9572 | -76.3 | 2.1 | |
| 0.00 | 0.26 | 0.00 | 0.51 | 13.51 | 230.06 | -75.66 | 76.62 | 0.9694 | 173.0 | 117.0 | |
| 0.00 | 1.54 | 0.00 | 4.69 | 17.26 | 224.83 | -80.89 | 72.88 | 0.9874 | 265.0 | 235.1 | |
| 4.80 | 32.17 | 12.95 | 89.11 | 16.15 | 226.05 | -79.67 | 73.98 | 0.9839 | 279.6 | -0.7 | |
| 3.17 | -7.00 | 8.91 | -7.00 | 15.98 | 225.61 | -80.11 | 74.16 | 0.9852 | -300.5 | 999999 | |
| 0.00 | 3.26 | 0.00 | 8.76 | 15.20 | 226.14 | -79.57 | 74.95 | 0.9836 | -102.0 | -102.9 | |
| 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. | |