| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 10.78 | 0.00 | 20.68 | 12.67 | 50.42 | -72.83 | 74.77 | 0.9671 | 11.6 | -72.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-01 17:00:27 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 | 2.41 | 0.00 | 4.66 | 13.81 | 50.62 | -72.62 | 73.57 | 0.9674 | -170.0 | -104.7 | |
| 0.00 | 1.47 | 0.00 | 2.70 | 12.45 | 51.01 | -72.23 | 74.87 | 0.9645 | -250.0 | -204.8 | |
| 0.00 | 3.02 | 0.00 | 5.52 | 12.07 | 51.07 | -72.17 | 75.25 | 0.9639 | -259.0 | -273.4 | |
| 0.00 | 1.55 | 0.00 | 2.92 | 11.83 | 50.52 | -72.73 | 75.60 | 0.9661 | 1.0 | -55.2 | |
| 0.00 | 0.95 | 0.00 | 1.82 | 12.17 | 50.28 | -72.96 | 75.30 | 0.9674 | 213.0 | 196.8 | |
| 0.00 | 0.43 | 0.00 | 0.95 | 13.45 | 48.48 | -74.76 | 74.35 | 0.9755 | 199.0 | 251.6 | |
| 0.00 | 0.95 | 0.00 | 2.11 | 13.22 | 48.33 | -74.92 | 74.61 | 0.9759 | 347.0 | 297.6 | |
| 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. | |