SDO HMI 2014-04-20 09:00:34 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 |
| 9.94 | 56.76 | 9.82 | 56.44 | -8.78 | 248.59 | 60.39 | 262.83 | 0.8674 | 311.8 | 138.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 09:00:34 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 |
| 5.59 | 47.46 | 5.71 | 48.42 | -8.77 | 249.56 | 61.36 | 262.83 | 0.8762 | 570.9 | 184.4 | |
| 2.66 | -1.00 | 2.69 | -1.00 | -8.60 | 249.32 | 61.12 | 263.03 | 0.8742 | 740.9 | 999999 | |
| 0.27 | -1.00 | 0.27 | -1.00 | -8.86 | 249.14 | 60.94 | 262.73 | 0.8727 | 891.7 | 999999 | |
| 0.00 | 0.35 | 0.00 | 0.35 | -8.70 | 248.84 | 60.64 | 262.92 | 0.8702 | 532.0 | 586.2 | |
| 0.00 | 0.80 | 0.00 | 0.77 | -7.18 | 247.68 | 59.48 | 264.72 | 0.8604 | 437.0 | 282.6 | |
| 0.00 | 1.15 | 0.00 | 1.02 | -10.40 | 244.53 | 56.34 | 260.94 | 0.8311 | -445.0 | -453.8 | |
| 0.00 | 1.24 | 0.00 | 1.09 | -10.11 | 244.29 | 56.09 | 261.28 | 0.8287 | -611.0 | -441.1 | |
| 0.00 | 1.06 | 0.00 | 0.93 | -9.86 | 243.90 | 55.70 | 261.57 | 0.8249 | -281.0 | -208.0 | |
| 0.00 | 1.24 | 0.00 | 1.05 | -8.22 | 242.72 | 54.52 | 263.59 | 0.8132 | 563.0 | 502.7 | |
| 0.00 | 0.62 | 0.00 | 0.51 | -9.45 | 241.57 | 53.37 | 262.05 | 0.8015 | -436.0 | -448.0 | |
| 1.42 | 2.84 | 1.15 | 2.30 | -8.62 | 240.89 | 52.69 | 263.10 | 0.7944 | -512.2 | -386.7 | |
| 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. | |