SDO HMI 2014-05-20 03:00:38 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 |
| 7.20 | 17.91 | 4.07 | 10.05 | 9.76 | 180.20 | 25.27 | 295.91 | 0.4696 | -360.9 | -202.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 03:00:38 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 |
| 2.70 | 4.86 | 1.53 | 2.75 | 9.09 | 181.49 | 26.57 | 293.31 | 0.4828 | -921.1 | -722.9 | |
| 4.50 | 7.29 | 2.54 | 4.12 | 9.34 | 181.41 | 26.49 | 293.85 | 0.4831 | -1015.3 | -688.2 | |
| 0.00 | 1.26 | 0.00 | 0.71 | 9.42 | 181.14 | 26.22 | 294.23 | 0.4798 | -887.0 | -758.2 | |
| 0.00 | 1.53 | 0.00 | 0.85 | 10.44 | 178.47 | 23.55 | 298.59 | 0.4493 | 656.0 | 501.2 | |
| 0.00 | 0.90 | 0.00 | 0.50 | 11.37 | 178.01 | 23.09 | 300.89 | 0.4499 | 578.0 | 478.1 | |
| 0.00 | 2.07 | 0.00 | 1.12 | 11.97 | 174.24 | 19.31 | 306.70 | 0.4053 | 729.0 | 565.7 | |
| 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. | |