SDO HMI 2011-12-06 11:58:56 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 |
| 9.30 | 24.13 | 5.29 | 13.83 | -25.25 | 77.00 | -16.75 | 148.84 | 0.5051 | 84.6 | -205.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-06 11:58:56 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 |
| 8.02 | 12.79 | 4.55 | 7.27 | -24.95 | 78.27 | -15.48 | 150.37 | 0.4915 | 915.4 | 543.5 | |
| 0.00 | 0.60 | 0.00 | 0.34 | -25.97 | 76.91 | -16.85 | 149.45 | 0.5147 | -674.0 | -608.0 | |
| 1.28 | 6.65 | 0.74 | 3.84 | -25.48 | 75.81 | -17.94 | 147.33 | 0.5173 | -792.7 | -501.3 | |
| 0.00 | 1.36 | 0.00 | 0.79 | -25.61 | 75.65 | -18.10 | 147.26 | 0.5202 | -590.0 | -463.4 | |
| 0.00 | 2.05 | 0.00 | 1.19 | -25.48 | 74.88 | -18.88 | 146.05 | 0.5250 | -816.0 | -734.1 | |
| 0.00 | 0.68 | 0.00 | 0.40 | -26.38 | 74.42 | -19.34 | 146.47 | 0.5392 | -713.0 | -560.0 | |
| 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. | |