SDO HMI 2014-07-28 00:00:40 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 |
| 26.92 | 132.27 | 55.90 | 270.45 | -8.84 | 248.41 | -75.03 | 100.52 | 0.9719 | -174.0 | -94.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-28 00:00:40 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 |
| 1.00 | 6.34 | 1.76 | 11.33 | -8.56 | 250.81 | -72.63 | 100.58 | 0.9613 | 476.6 | 481.9 | |
| 1.00 | -1.00 | 1.79 | -1.00 | -8.17 | 250.58 | -72.87 | 100.15 | 0.9622 | 489.8 | 999999 | |
| 0.00 | 5.16 | 0.00 | 9.55 | -8.65 | 250.12 | -73.32 | 100.57 | 0.9646 | -56.0 | -45.9 | |
| 0.00 | 0.91 | 0.00 | 1.79 | -9.52 | 249.18 | -74.26 | 101.32 | 0.9692 | -439.0 | -372.0 | |
| 0.00 | 1.36 | 0.00 | 2.56 | -8.19 | 249.70 | -73.75 | 100.04 | 0.9662 | 235.0 | 189.5 | |
| 7.07 | 118.50 | 13.79 | 245.22 | -7.78 | 249.11 | -74.34 | 99.53 | 0.9685 | 502.8 | -121.2 | |
| 3.99 | -6.00 | 8.07 | -6.00 | -8.13 | 248.69 | -74.76 | 99.83 | 0.9704 | 198.0 | 999999 | |
| 13.86 | -6.00 | 30.49 | -6.00 | -9.56 | 247.69 | -75.75 | 101.16 | 0.9752 | -663.7 | 999999 | |
| 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. | |