SDO HMI 2011-08-15 15:59:09 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 |
| 19.10 | 136.13 | 59.26 | 442.88 | 15.34 | 60.14 | -82.39 | 75.42 | 0.9863 | -292.5 | -29.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-15 15:59:09 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 |
| 6.04 | 82.35 | 12.78 | 182.03 | 15.99 | 64.71 | -77.82 | 75.09 | 0.9734 | -466.5 | -45.4 | |
| 0.63 | -1.00 | 1.39 | -1.00 | 15.71 | 64.16 | -78.37 | 75.35 | 0.9756 | 154.0 | 999999 | |
| 4.23 | -1.00 | 9.70 | -1.00 | 15.44 | 63.72 | -78.80 | 75.60 | 0.9772 | 312.5 | 999999 | |
| 1.62 | -1.00 | 3.64 | -1.00 | 15.25 | 63.99 | -78.54 | 75.81 | 0.9763 | -161.1 | 999999 | |
| 0.00 | 0.99 | 0.00 | 5.86 | 18.39 | 55.41 | -87.12 | 72.00 | 0.9969 | 198.0 | 167.5 | |
| 1.44 | 14.69 | 4.41 | 47.36 | 16.56 | 60.40 | -82.13 | 74.25 | 0.9873 | -115.9 | 283.0 | |
| 0.00 | 1.26 | 0.00 | 7.45 | 17.79 | 55.49 | -87.04 | 72.61 | 0.9968 | 193.0 | 181.2 | |
| 0.00 | 4.23 | 0.00 | 13.49 | 15.30 | 59.96 | -82.57 | 75.48 | 0.9887 | 570.0 | 436.3 | |
| 0.00 | 4.23 | 0.00 | 25.34 | 15.43 | 55.53 | -86.99 | 74.97 | 0.9971 | -220.0 | -105.5 | |
| 5.14 | 28.38 | 27.34 | 161.35 | 14.37 | 56.56 | -85.96 | 76.12 | 0.9958 | -564.3 | -163.8 | |
| 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. | |