SDO HMI 2011-03-04 08:58:59 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 |
| 12.36 | 18.67 | 16.72 | 24.67 | 24.50 | 215.77 | 61.77 | 300.16 | 0.9284 | -235.6 | 122.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-03-04 08:58:59 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 |
| 1.99 | 13.31 | 2.75 | 18.22 | 24.73 | 216.89 | 62.89 | 300.02 | 0.9353 | 163.7 | -296.2 | |
| 9.25 | -1.00 | 12.64 | -1.00 | 24.60 | 216.63 | 62.63 | 299.97 | 0.9336 | -452.6 | 999999 | |
| 0.00 | 0.95 | 0.00 | 1.21 | 25.50 | 214.43 | 60.43 | 301.61 | 0.9235 | 469.0 | 343.8 | |
| 1.12 | 4.41 | 1.33 | 5.24 | 23.86 | 212.93 | 58.93 | 300.47 | 0.9106 | 471.1 | 357.6 | |
| 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. | |