SDO HMI 2011-12-16 21:58:55 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 |
| 7.31 | 80.99 | 4.94 | 54.30 | 8.43 | 357.85 | 41.37 | 283.81 | 0.6753 | -69.0 | -331.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-16 21:58:55 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 |
| 3.57 | 71.88 | 2.42 | 48.59 | 8.40 | 358.54 | 42.06 | 283.56 | 0.6841 | -898.5 | -440.6 | |
| 3.74 | -1.00 | 2.52 | -1.00 | 8.48 | 358.23 | 41.75 | 283.77 | 0.6805 | -1143.0 | 999999 | |
| 0.00 | 1.79 | 0.00 | 1.15 | 9.22 | 355.08 | 38.60 | 285.84 | 0.6424 | 614.0 | 399.6 | |
| 0.00 | 1.28 | 0.00 | 0.81 | 9.41 | 353.81 | 37.33 | 286.60 | 0.6266 | 596.0 | 502.1 | |
| 0.00 | 1.02 | 0.00 | 0.65 | 9.35 | 353.61 | 37.13 | 286.58 | 0.6238 | 396.0 | 412.8 | |
| 0.00 | 0.94 | 0.00 | 0.59 | 8.36 | 353.42 | 36.94 | 285.09 | 0.6182 | 500.0 | 435.5 | |
| 0.00 | 1.53 | 0.00 | 0.96 | 8.60 | 353.34 | 36.86 | 285.50 | 0.6178 | 707.0 | 702.9 | |
| 0.00 | 0.85 | 0.00 | 0.53 | 8.36 | 353.23 | 36.76 | 285.15 | 0.6157 | 706.0 | 600.4 | |
| 0.00 | 1.70 | 0.00 | 1.02 | 5.56 | 350.50 | 34.03 | 281.41 | 0.5704 | 712.0 | 473.6 | |
| 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. | |