SDO HMI 2014-08-17 23:00:38 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 |
| 60.58 | 371.16 | 68.75 | 420.25 | -17.62 | 106.23 | 59.90 | 246.50 | 0.8990 | 66.1 | -8.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-17 23:00:38 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 |
| 30.88 | 192.65 | 38.90 | 242.46 | -17.12 | 109.53 | 63.20 | 248.09 | 0.9211 | 546.7 | 192.4 | |
| 1.89 | -1.00 | 2.28 | -1.00 | -16.68 | 108.50 | 62.17 | 248.26 | 0.9137 | 701.0 | 999999 | |
| 0.00 | 2.88 | 0.00 | 3.39 | -16.47 | 107.77 | 61.45 | 248.28 | 0.9085 | 357.0 | 402.4 | |
| 0.00 | 1.26 | 0.00 | 1.49 | -16.73 | 107.78 | 61.46 | 248.00 | 0.9091 | 485.0 | 453.4 | |
| 0.00 | 1.98 | 0.00 | 2.39 | -17.53 | 108.25 | 61.92 | 247.29 | 0.9137 | 505.0 | 445.7 | |
| 0.90 | 4.23 | 1.03 | 4.81 | -17.04 | 106.70 | 60.38 | 247.35 | 0.9024 | 482.7 | 434.5 | |
| 0.00 | 2.07 | 0.00 | 2.23 | -19.46 | 104.09 | 57.77 | 243.93 | 0.8897 | -435.0 | -376.3 | |
| 11.97 | 166.09 | 11.89 | 163.48 | -18.73 | 101.54 | 55.21 | 243.80 | 0.8688 | -550.8 | -333.1 | |
| 14.94 | -8.00 | 14.65 | -8.00 | -18.17 | 101.21 | 54.89 | 244.29 | 0.8646 | -881.4 | 999999 | |
| 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. | |