| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 12.42 | 25.45 | 6.84 | 14.05 | -17.13 | 156.19 | -21.90 | 126.19 | 0.4423 | 376.9 | 101.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-18 09:00:38 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 |
| 3.78 | 13.85 | 2.05 | 7.52 | -16.88 | 158.49 | -19.60 | 128.36 | 0.4110 | 1174.5 | 788.3 | |
| 2.70 | -1.00 | 1.47 | -1.00 | -16.78 | 158.37 | -19.72 | 128.00 | 0.4117 | 1176.2 | 999999 | |
| 0.00 | 0.81 | 0.00 | 0.44 | -16.97 | 158.18 | -19.91 | 128.12 | 0.4158 | 757.0 | 668.7 | |
| 1.80 | -1.00 | 0.98 | -1.00 | -16.78 | 158.10 | -19.99 | 127.64 | 0.4151 | 949.0 | 999999 | |
| 0.00 | 0.90 | 0.00 | 0.49 | -16.23 | 157.11 | -20.98 | 125.30 | 0.4229 | 876.0 | 717.4 | |
| 4.14 | 8.90 | 2.34 | 5.04 | -17.54 | 153.05 | -25.04 | 123.45 | 0.4857 | -949.3 | -720.5 | |
| 0.00 | 0.99 | 0.00 | 0.56 | -18.39 | 152.74 | -25.35 | 124.66 | 0.4960 | -770.0 | -639.1 | |
| 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. | |