SDO HMI 2011-10-11 07:59:02 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 |
| 2.01 | 6.40 | 2.19 | 6.88 | 18.29 | 51.12 | -63.16 | 72.56 | 0.8899 | -326.8 | -333.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-11 07:59:02 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 | 1.84 | 0.00 | 1.97 | 18.28 | 51.26 | -63.02 | 72.56 | 0.8888 | -395.0 | -314.9 | |
| 2.01 | 2.72 | 2.19 | 2.95 | 18.72 | 50.90 | -63.38 | 72.09 | 0.8917 | -199.1 | -208.4 | |
| 0.00 | 0.53 | 0.00 | 0.56 | 17.97 | 51.26 | -63.02 | 72.92 | 0.8888 | -416.0 | -469.2 | |
| 0.00 | 1.31 | 0.00 | 1.40 | 17.54 | 51.32 | -62.96 | 73.40 | 0.8881 | -449.0 | -372.2 | |
| 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. | |