SDO HMI 2012-05-09 09:59:08 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 |
| 0.00 | 7.07 | 0.00 | 3.83 | 17.05 | 223.95 | 12.27 | 329.62 | 0.4061 | 527.0 | 425.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2012-05-09 09:59:08 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 | 1.07 | 0.00 | 0.59 | 13.69 | 229.84 | 18.16 | 313.61 | 0.4199 | -844.0 | -655.0 | |
| 0.00 | 0.90 | 0.00 | 0.48 | 15.87 | 225.41 | 13.73 | 324.99 | 0.3996 | 853.0 | 683.9 | |
| 0.00 | 0.99 | 0.00 | 0.53 | 17.46 | 223.32 | 11.63 | 331.37 | 0.4031 | 770.0 | 631.5 | |
| 0.00 | 1.16 | 0.00 | 0.63 | 17.68 | 223.27 | 11.58 | 331.75 | 0.4059 | 849.0 | 755.8 | |
| 0.00 | 1.70 | 0.00 | 0.92 | 18.29 | 222.82 | 11.14 | 333.39 | 0.4112 | 786.0 | 564.4 | |
| 0.00 | 1.25 | 0.00 | 0.68 | 18.20 | 220.45 | 8.77 | 338.36 | 0.3944 | 748.0 | 515.2 | |
| 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. | |