SDO HMI 2011-07-16 18:59:11 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 |
| 37.84 | 284.89 | 19.36 | 145.90 | 16.41 | 169.17 | -8.48 | 34.06 | 0.2531 | -874.1 | -412.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-07-16 18:59:11 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 |
| 28.94 | 272.91 | 14.81 | 139.65 | 16.41 | 169.41 | -8.24 | 33.45 | 0.2504 | -1335.0 | -450.9 | |
| 2.09 | -1.00 | 1.07 | -1.00 | 16.81 | 169.36 | -8.29 | 32.69 | 0.2565 | -967.7 | 999999 | |
| 5.72 | -1.00 | 2.92 | -1.00 | 16.03 | 169.36 | -8.28 | 34.48 | 0.2457 | -1416.7 | 999999 | |
| 1.09 | -1.00 | 0.56 | -1.00 | 16.65 | 169.17 | -8.47 | 33.62 | 0.2560 | -1000.7 | 999999 | |
| 0.00 | 1.54 | 0.00 | 0.79 | 16.14 | 167.68 | -9.96 | 39.19 | 0.2641 | -824.0 | -589.8 | |
| 0.00 | 1.63 | 0.00 | 0.84 | 17.32 | 167.43 | -10.22 | 37.09 | 0.2820 | -768.0 | -463.2 | |
| 0.00 | 1.91 | 0.00 | 0.99 | 17.31 | 166.78 | -10.86 | 38.78 | 0.2886 | 865.0 | 595.4 | |
| 0.00 | 0.91 | 0.00 | 0.48 | 19.68 | 163.51 | -14.13 | 40.96 | 0.3523 | 756.0 | 602.0 | |
| 0.00 | 1.45 | 0.00 | 0.76 | 16.71 | 162.44 | -15.20 | 49.45 | 0.3320 | 684.0 | 512.4 | |
| 0.00 | 3.18 | 0.00 | 1.68 | 17.84 | 161.44 | -16.20 | 48.54 | 0.3559 | 849.0 | 692.3 | |
| 0.00 | 1.36 | 0.00 | 0.71 | 13.45 | 160.85 | -16.79 | 60.39 | 0.3246 | 899.0 | 648.1 | |
| 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. | |