SDO HMI 2014-01-17 18:00:24 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 |
| 48.63 | 236.16 | 33.30 | 161.48 | -16.09 | 11.79 | 42.88 | 251.60 | 0.6913 | 795.8 | 318.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-17 18:00:24 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 |
| 2.13 | 145.87 | 1.48 | 100.98 | -16.54 | 12.91 | 44.00 | 251.25 | 0.7056 | 195.8 | 249.8 | |
| 29.07 | -1.00 | 20.09 | -1.00 | -16.48 | 12.42 | 43.51 | 251.22 | 0.6997 | 990.2 | 999999 | |
| 0.00 | 1.11 | 0.00 | 0.75 | -14.94 | 11.80 | 42.89 | 253.27 | 0.6891 | 446.0 | 371.0 | |
| 17.43 | 79.99 | 11.73 | 53.79 | -15.07 | 11.01 | 42.09 | 252.89 | 0.6796 | 1109.3 | 476.7 | |
| 0.00 | 1.45 | 0.00 | 0.98 | -19.50 | 10.66 | 41.75 | 246.43 | 0.6872 | 542.0 | 388.5 | |
| 0.00 | 3.91 | 0.00 | 2.64 | -19.56 | 10.13 | 41.22 | 246.16 | 0.6812 | 676.0 | 571.3 | |
| 0.00 | 0.68 | 0.00 | 0.43 | -17.51 | 6.58 | 37.67 | 247.90 | 0.6313 | -610.0 | -496.6 | |
| 0.00 | 1.11 | 0.00 | 0.69 | -18.19 | 5.00 | 36.08 | 246.19 | 0.6139 | -783.0 | -612.9 | |
| 0.00 | 1.02 | 0.00 | 0.61 | -16.14 | 2.08 | 33.17 | 248.24 | 0.5681 | -719.0 | -541.7 | |
| 0.00 | 1.02 | 0.00 | 0.61 | -19.12 | 0.51 | 31.60 | 242.37 | 0.5610 | -679.0 | -497.0 | |
| 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. | |