SDO HMI 2011-05-01 13:59:07 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 |
| 41.11 | 247.10 | 31.15 | 183.40 | 17.72 | 62.64 | -43.38 | 61.55 | 0.7452 | -611.7 | -215.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-05-01 13:59:07 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 |
| 33.44 | 226.14 | 24.40 | 165.18 | 17.59 | 63.50 | -42.52 | 61.33 | 0.7365 | -1004.3 | -273.7 | |
| 1.07 | 3.21 | 0.84 | 2.53 | 18.90 | 59.68 | -46.34 | 61.59 | 0.7805 | 584.2 | 487.0 | |
| 0.00 | 0.54 | 0.00 | 0.42 | 18.71 | 59.56 | -46.46 | 61.87 | 0.7808 | 568.0 | 481.7 | |
| 0.00 | 0.54 | 0.00 | 0.42 | 18.30 | 59.24 | -46.78 | 62.49 | 0.7823 | 504.0 | 405.5 | |
| 1.25 | 1.87 | 1.11 | 1.67 | 20.03 | 54.25 | -51.77 | 62.54 | 0.8339 | 497.6 | 434.6 | |
| 1.25 | 1.87 | 1.15 | 1.72 | 20.87 | 53.37 | -52.65 | 61.92 | 0.8440 | 376.7 | 384.6 | |
| 4.10 | 12.93 | 3.65 | 11.46 | 18.49 | 53.80 | -52.22 | 64.46 | 0.8330 | 459.5 | 525.2 | |
| 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. | |