| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 6.53 | 0.00 | 3.70 | -18.16 | 206.15 | -11.59 | 157.05 | 0.4812 | -84.7 | 88.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-28 12:00:33 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 | 1.32 | 0.00 | 0.72 | -17.56 | 214.79 | -2.95 | 173.22 | 0.4174 | 795.0 | 601.4 | |
| 0.00 | 1.68 | 0.00 | 0.92 | -18.29 | 214.46 | -3.28 | 172.71 | 0.4296 | 607.0 | 538.1 | |
| 0.00 | 0.62 | 0.00 | 0.37 | -25.51 | 210.33 | -7.41 | 167.71 | 0.5486 | 568.0 | 458.7 | |
| 0.00 | 0.71 | 0.00 | 0.40 | -16.41 | 201.60 | -16.14 | 145.64 | 0.4744 | -685.0 | -561.8 | |
| 0.00 | 0.88 | 0.00 | 0.52 | -17.68 | 196.08 | -21.66 | 139.15 | 0.5398 | -600.0 | -394.1 | |
| 0.00 | 1.06 | 0.00 | 0.62 | -17.69 | 195.73 | -22.00 | 138.73 | 0.5432 | -592.0 | -398.3 | |
| 0.00 | 0.26 | 0.00 | 0.15 | -10.31 | 193.53 | -24.20 | 125.19 | 0.4956 | -686.0 | -623.3 | |
| 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. | |