SDO HMI 2011-08-17 20:59:09 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 |
| 19.08 | 93.51 | 20.30 | 99.24 | -20.71 | 56.56 | -56.76 | 117.76 | 0.8856 | 342.6 | 139.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-17 20:59:09 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 |
| 0.00 | 0.63 | 0.00 | 0.68 | -22.61 | 56.70 | -56.62 | 119.80 | 0.8902 | -338.0 | -302.4 | |
| 0.00 | 1.17 | 0.00 | 1.24 | -21.90 | 57.03 | -56.29 | 119.17 | 0.8859 | 196.0 | 82.0 | |
| 9.63 | 74.52 | 9.98 | 77.78 | -20.84 | 57.41 | -55.91 | 118.20 | 0.8801 | 785.4 | 174.0 | |
| 5.58 | -3.00 | 5.87 | -3.00 | -20.90 | 56.85 | -56.47 | 118.05 | 0.8843 | 297.2 | 999999 | |
| 0.00 | 3.24 | 0.00 | 3.33 | -18.70 | 56.82 | -56.50 | 115.69 | 0.8784 | 636.0 | 557.4 | |
| 0.00 | 1.71 | 0.00 | 1.80 | -19.29 | 56.27 | -57.05 | 116.12 | 0.8841 | 427.0 | 378.7 | |
| 1.17 | 2.07 | 1.24 | 2.20 | -19.42 | 56.02 | -57.30 | 116.17 | 0.8862 | 282.4 | 166.4 | |
| 0.99 | 1.80 | 1.10 | 2.00 | -19.66 | 54.66 | -58.66 | 115.96 | 0.8964 | 259.0 | 248.6 | |
| 0.00 | 1.17 | 0.00 | 1.29 | -19.48 | 54.76 | -58.56 | 115.81 | 0.8953 | 461.0 | 267.9 | |
| 1.71 | 4.77 | 2.11 | 5.85 | -20.82 | 51.88 | -61.44 | 116.29 | 0.9173 | -627.9 | -450.1 | |
| 0.00 | 1.35 | 0.00 | 1.69 | -20.64 | 51.39 | -61.93 | 115.95 | 0.9200 | -508.0 | -480.1 | |
| 0.00 | 1.08 | 0.00 | 1.38 | -20.92 | 50.98 | -62.34 | 116.11 | 0.9231 | -414.0 | -301.2 | |
| 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. | |