| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 11.08 | 0.00 | 5.59 | -14.38 | 205.11 | -2.34 | 170.19 | 0.1738 | 6.9 | 135.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-18 22:00:34 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 | 3.19 | 0.00 | 1.60 | -13.87 | 208.65 | 1.20 | 187.76 | 0.1508 | 629.0 | 631.7 | |
| 0.00 | 1.68 | 0.00 | 0.84 | -13.60 | 208.55 | 1.10 | 187.40 | 0.1458 | 842.0 | 658.8 | |
| 0.00 | 0.97 | 0.00 | 0.49 | -12.93 | 208.36 | 0.91 | 186.70 | 0.1339 | 924.0 | 711.9 | |
| 0.00 | 1.95 | 0.00 | 0.97 | -11.87 | 205.93 | -1.52 | 167.19 | 0.1174 | -730.0 | -685.0 | |
| 0.00 | 0.89 | 0.00 | 0.44 | -8.41 | 203.70 | -3.75 | 129.89 | 0.0847 | -764.0 | -590.1 | |
| 0.00 | 0.62 | 0.00 | 0.31 | -15.47 | 200.11 | -7.34 | 145.16 | 0.2165 | -682.0 | -534.9 | |
| 0.00 | 0.89 | 0.00 | 0.47 | -23.04 | 197.60 | -9.85 | 152.74 | 0.3453 | 696.0 | 497.6 | |
| 0.00 | 0.89 | 0.00 | 0.47 | -20.42 | 193.94 | -13.51 | 140.23 | 0.3436 | -860.0 | -623.9 | |
| 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. | |