SDO HMI 2014-03-07 13:00:28 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 | 4.16 | 0.00 | 3.89 | 17.63 | 99.51 | 53.11 | 296.05 | 0.8507 | 412.0 | 365.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-07 13:00:28 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 | 0.95 | 0.00 | 0.90 | 14.97 | 100.77 | 54.37 | 292.62 | 0.8527 | 382.0 | 370.5 | |
| 0.00 | 0.87 | 0.00 | 0.80 | 16.60 | 99.20 | 52.80 | 295.02 | 0.8445 | 593.0 | 471.2 | |
| 0.00 | 1.21 | 0.00 | 1.13 | 18.37 | 99.17 | 52.76 | 297.00 | 0.8501 | 573.0 | 474.2 | |
| 0.00 | 1.13 | 0.00 | 1.06 | 19.89 | 99.03 | 52.63 | 298.72 | 0.8542 | 100.0 | 165.9 | |
| 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. | |