SDO HMI 2014-10-04 19:00:32 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 | 19.60 | 0.00 | 10.29 | -11.92 | 139.36 | 4.65 | 194.33 | 0.3282 | -155.8 | 367.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-04 19:00:32 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 | 1.23 | 0.00 | 0.67 | -16.50 | 140.56 | 5.85 | 194.04 | 0.4046 | 740.0 | 631.3 | |
| 0.00 | 9.40 | 0.00 | 4.89 | -10.12 | 140.35 | 5.64 | 198.69 | 0.3034 | 1166.0 | 864.1 | |
| 0.00 | 1.67 | 0.00 | 0.90 | -15.51 | 139.31 | 4.60 | 191.65 | 0.3847 | -896.0 | -817.9 | |
| 0.00 | 0.79 | 0.00 | 0.43 | -18.61 | 138.78 | 4.08 | 189.01 | 0.4320 | -884.0 | -789.3 | |
| 0.00 | 3.43 | 0.00 | 1.78 | -10.31 | 138.21 | 3.51 | 191.73 | 0.2973 | 990.0 | 722.6 | |
| 0.00 | 0.79 | 0.00 | 0.42 | -15.01 | 138.12 | 3.41 | 188.90 | 0.3733 | -812.0 | -702.6 | |
| 0.00 | 1.41 | 0.00 | 0.75 | -14.66 | 137.96 | 3.25 | 188.63 | 0.3672 | -926.0 | -741.2 | |
| 0.00 | 0.88 | 0.00 | 0.45 | -9.98 | 135.50 | 0.79 | 182.74 | 0.2861 | -624.0 | -488.2 | |
| 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. | |