SDO HMI 2011-10-16 13:59:01 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 | 8.03 | 0.00 | 6.70 | 20.03 | 98.19 | 53.16 | 290.75 | 0.8051 | -0.7 | 48.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-16 13:59:01 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 | 1.75 | 0.00 | 1.57 | 19.87 | 101.44 | 56.40 | 290.04 | 0.8360 | -302.0 | -230.4 | |
| 0.00 | 1.05 | 0.00 | 0.93 | 20.01 | 100.88 | 55.85 | 290.28 | 0.8311 | -349.0 | -286.5 | |
| 0.00 | 0.52 | 0.00 | 0.46 | 20.09 | 100.64 | 55.61 | 290.41 | 0.8290 | -533.0 | -465.8 | |
| 0.00 | 0.87 | 0.00 | 0.75 | 19.63 | 99.73 | 54.69 | 289.98 | 0.8201 | -544.0 | -506.0 | |
| 0.00 | 1.05 | 0.00 | 0.82 | 20.10 | 95.28 | 50.25 | 291.30 | 0.7772 | 372.0 | 313.4 | |
| 0.00 | 0.96 | 0.00 | 0.75 | 20.32 | 94.93 | 49.89 | 291.64 | 0.7740 | 654.0 | 614.8 | |
| 0.00 | 1.83 | 0.00 | 1.42 | 20.21 | 94.63 | 49.60 | 291.57 | 0.7707 | 697.0 | 584.6 | |
| 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. | |