SDO HMI 2011-12-07 16:58:56 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 |
| 1.11 | 14.40 | 0.64 | 8.32 | 12.36 | 49.14 | -28.68 | 65.61 | 0.5169 | 726.3 | 640.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-07 16:58:56 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 | 1.11 | 0.00 | 0.63 | 11.06 | 50.39 | -27.44 | 67.16 | 0.4927 | 718.0 | 592.8 | |
| 0.00 | 1.19 | 0.00 | 0.68 | 11.21 | 49.46 | -28.37 | 67.51 | 0.5066 | 760.0 | 574.9 | |
| 0.00 | 1.02 | 0.00 | 0.59 | 11.48 | 49.39 | -28.44 | 67.05 | 0.5088 | 784.0 | 637.2 | |
| 0.00 | 0.94 | 0.00 | 0.54 | 12.21 | 49.28 | -28.55 | 65.79 | 0.5143 | 636.0 | 568.9 | |
| 1.11 | 7.33 | 0.64 | 4.24 | 12.69 | 49.11 | -28.71 | 65.03 | 0.5191 | 905.5 | 733.0 | |
| 0.00 | 1.70 | 0.00 | 0.99 | 12.63 | 48.60 | -29.23 | 65.49 | 0.5257 | 656.0 | 473.0 | |
| 0.00 | 1.11 | 0.00 | 0.65 | 13.20 | 48.32 | -29.51 | 64.67 | 0.5327 | 689.0 | 565.5 | |
| 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. | |