SDO HMI 2011-08-23 15:59:09 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 |
| 9.52 | 27.50 | 7.44 | 20.66 | 7.81 | 347.76 | -49.04 | 85.78 | 0.7495 | -77.7 | -311.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-23 15:59:09 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 |
| 5.30 | 14.91 | 3.69 | 10.35 | 7.10 | 351.87 | -44.93 | 86.94 | 0.7041 | -830.2 | -668.1 | |
| 0.00 | 2.43 | 0.00 | 1.70 | 7.10 | 351.52 | -45.27 | 86.92 | 0.7084 | -545.0 | -470.1 | |
| 0.00 | 1.44 | 0.00 | 1.07 | 6.91 | 348.03 | -48.76 | 86.93 | 0.7499 | -603.0 | -478.0 | |
| 0.00 | 1.35 | 0.00 | 1.07 | 9.40 | 344.90 | -51.89 | 83.51 | 0.7835 | 599.0 | 483.3 | |
| 0.00 | 1.08 | 0.00 | 0.88 | 7.89 | 343.78 | -53.01 | 85.38 | 0.7960 | 600.0 | 502.9 | |
| 4.22 | 6.29 | 3.75 | 5.59 | 9.21 | 340.12 | -56.67 | 83.56 | 0.8321 | 566.3 | 376.0 | |
| 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. | |