SDO HMI 2011-01-02 09:58:55 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 |
| 1.36 | 8.30 | 0.75 | 4.56 | -28.24 | 232.16 | -4.56 | 170.80 | 0.4324 | 24.7 | -125.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-01-02 09:58:55 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 | 1.10 | 0.00 | 0.60 | -27.63 | 234.90 | -1.82 | 176.11 | 0.4172 | 753.0 | 513.7 | |
| 0.00 | 0.76 | 0.00 | 0.41 | -26.92 | 234.71 | -2.01 | 175.56 | 0.4061 | 734.0 | 666.3 | |
| 0.00 | 1.10 | 0.00 | 0.59 | -26.08 | 233.90 | -2.82 | 173.54 | 0.3939 | 727.0 | 623.2 | |
| 0.00 | 1.27 | 0.00 | 0.71 | -29.12 | 231.29 | -5.43 | 169.31 | 0.4478 | -650.0 | -549.5 | |
| 1.36 | 2.97 | 0.75 | 1.64 | -28.82 | 230.86 | -5.86 | 168.34 | 0.4445 | -945.3 | -781.4 | |
| 0.00 | 1.10 | 0.00 | 0.61 | -29.25 | 230.60 | -6.12 | 168.07 | 0.4518 | -713.0 | -569.3 | |
| 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. | |