SDO HMI 2014-08-18 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 |
| 25.11 | 113.03 | 28.06 | 127.44 | -9.60 | 331.20 | -61.91 | 104.24 | 0.8991 | 545.2 | 147.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-18 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 |
| 19.89 | 100.52 | 22.03 | 112.44 | -9.51 | 331.60 | -61.51 | 104.24 | 0.8961 | 740.8 | 181.2 | |
| 0.00 | 1.98 | 0.00 | 2.33 | -11.26 | 330.24 | -62.87 | 105.80 | 0.9088 | 352.0 | 305.7 | |
| 4.32 | -1.00 | 4.94 | -1.00 | -9.39 | 330.64 | -62.47 | 103.88 | 0.9030 | 372.7 | 999999 | |
| 0.00 | 2.34 | 0.00 | 2.81 | -11.26 | 329.69 | -63.42 | 105.66 | 0.9127 | -315.0 | -288.8 | |
| 0.45 | 1.80 | 0.53 | 2.10 | -9.52 | 330.06 | -63.05 | 103.88 | 0.9074 | 131.6 | 80.3 | |
| 0.00 | 2.34 | 0.00 | 2.83 | -11.06 | 329.49 | -63.62 | 105.40 | 0.9137 | -498.0 | -363.5 | |
| 0.00 | 1.53 | 0.00 | 1.81 | -8.76 | 329.54 | -63.56 | 102.95 | 0.9098 | 225.0 | 221.9 | |
| 0.45 | 1.53 | 0.56 | 1.92 | -10.79 | 328.45 | -64.66 | 104.88 | 0.9202 | -414.4 | -351.8 | |
| 0.00 | 0.99 | 0.00 | 1.20 | -9.26 | 329.03 | -64.08 | 103.37 | 0.9141 | 261.0 | 229.6 | |
| 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. | |