SDO HMI 2014-10-17 14:00:30 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 |
| 42.15 | 252.87 | 37.55 | 225.75 | -21.15 | 16.27 | 50.31 | 239.78 | 0.8327 | 787.1 | 189.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-17 14:00:30 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 | 0.87 | 0.00 | 0.80 | -17.49 | 18.95 | 52.99 | 244.95 | 0.8428 | 279.0 | 316.6 | |
| 0.00 | 0.70 | 0.00 | 0.62 | -17.41 | 17.93 | 51.97 | 244.66 | 0.8338 | 247.0 | 238.8 | |
| 18.85 | 243.53 | 16.93 | 217.71 | -21.21 | 16.65 | 50.68 | 239.87 | 0.8361 | 814.2 | 196.4 | |
| 0.00 | 0.96 | 0.00 | 0.88 | -22.38 | 17.07 | 51.11 | 238.77 | 0.8438 | -221.0 | -206.0 | |
| 21.64 | -3.00 | 19.17 | -3.00 | -21.07 | 16.12 | 50.16 | 239.80 | 0.8312 | 1136.0 | 999999 | |
| 1.66 | -3.00 | 1.45 | -3.00 | -21.45 | 15.45 | 49.49 | 239.08 | 0.8270 | 535.8 | 999999 | |
| 0.00 | 0.70 | 0.00 | 0.60 | -20.93 | 14.77 | 48.81 | 239.36 | 0.8192 | 274.0 | 386.9 | |
| 0.00 | 0.70 | 0.00 | 0.59 | -20.92 | 14.18 | 48.22 | 239.10 | 0.8140 | 269.0 | 385.2 | |
| 0.00 | 1.40 | 0.00 | 1.20 | -22.14 | 14.15 | 48.18 | 237.71 | 0.8188 | 460.0 | 426.1 | |
| 0.00 | 1.92 | 0.00 | 1.63 | -22.23 | 13.56 | 47.60 | 237.33 | 0.8142 | -358.0 | -254.6 | |
| 0.00 | 0.96 | 0.00 | 0.82 | -22.46 | 13.52 | 47.56 | 237.05 | 0.8149 | -205.0 | -288.5 | |
| 0.00 | 1.13 | 0.00 | 0.90 | -21.09 | 10.39 | 44.43 | 237.00 | 0.7810 | -445.0 | -310.8 | |
| 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. | |