SDO HMI 2011-12-10 23:58:55 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 |
| 4.26 | 16.20 | 3.10 | 11.72 | -19.13 | 78.20 | 43.77 | 243.63 | 0.7318 | -258.5 | -205.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-10 23:58:55 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 |
| 0.00 | 0.60 | 0.00 | 0.46 | -17.71 | 81.96 | 47.53 | 246.85 | 0.7666 | 566.0 | 471.6 | |
| 0.00 | 1.53 | 0.00 | 1.13 | -17.78 | 79.68 | 45.25 | 245.97 | 0.7428 | 374.0 | 440.5 | |
| 4.26 | 7.16 | 3.10 | 5.21 | -19.28 | 78.51 | 44.08 | 243.58 | 0.7356 | -647.8 | -509.2 | |
| 0.00 | 1.62 | 0.00 | 1.17 | -18.59 | 78.24 | 43.81 | 244.36 | 0.7301 | 612.0 | 578.5 | |
| 0.00 | 1.11 | 0.00 | 0.79 | -19.91 | 77.42 | 42.99 | 242.31 | 0.7265 | -547.0 | -476.6 | |
| 0.00 | 1.79 | 0.00 | 1.27 | -19.63 | 76.90 | 42.47 | 242.44 | 0.7198 | -633.0 | -492.7 | |
| 0.00 | 2.39 | 0.00 | 1.69 | -19.56 | 76.54 | 42.11 | 242.36 | 0.7156 | -716.0 | -640.8 | |
| 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. | |