| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 5.09 | 0.00 | 3.08 | 8.20 | 63.29 | -31.40 | 64.32 | 0.5757 | -684.8 | -610.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-03 21:00:28 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 | 1.90 | 0.00 | 1.15 | 9.32 | 63.83 | -30.86 | 62.14 | 0.5747 | -795.0 | -720.7 | |
| 0.00 | 1.38 | 0.00 | 0.83 | 9.11 | 63.71 | -30.98 | 62.56 | 0.5749 | -737.0 | -617.4 | |
| 0.00 | 0.95 | 0.00 | 0.58 | 9.32 | 63.45 | -31.25 | 62.45 | 0.5796 | -596.0 | -466.5 | |
| 0.00 | 0.86 | 0.00 | 0.52 | 3.03 | 61.25 | -33.45 | 74.02 | 0.5747 | -611.0 | -515.2 | |
| 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. | |