| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 19.69 | 91.74 | 31.47 | 146.98 | 16.05 | 159.33 | 70.81 | 287.25 | 0.9514 | 67.3 | -59.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-30 02:59:10 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 |
| 8.85 | 38.02 | 15.17 | 65.53 | 15.41 | 160.75 | 72.23 | 286.42 | 0.9583 | -418.9 | -301.3 | |
| 0.00 | 2.89 | 0.00 | 4.63 | 16.25 | 159.44 | 70.92 | 287.43 | 0.9523 | -181.0 | -176.1 | |
| 0.00 | 1.26 | 0.00 | 1.87 | 15.46 | 157.87 | 69.35 | 286.79 | 0.9435 | 287.0 | 282.5 | |
| 10.84 | 49.57 | 16.30 | 74.95 | 16.61 | 158.12 | 69.60 | 287.97 | 0.9456 | 521.4 | 147.5 | |
| 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. | |