SDO HMI 2011-10-29 23:59:00 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 |
| 16.73 | 30.86 | 25.83 | 48.82 | 12.97 | 300.41 | 72.34 | 282.17 | 0.9499 | 161.4 | 189.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-29 23:59:00 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 |
| 1.13 | 2.86 | 2.79 | 7.06 | 12.89 | 307.28 | 79.22 | 282.23 | 0.9807 | -174.2 | -222.8 | |
| 0.00 | 1.13 | 0.00 | 2.19 | 11.50 | 304.00 | 75.94 | 280.69 | 0.9685 | -65.0 | -73.3 | |
| 5.03 | 8.15 | 7.66 | 12.37 | 13.11 | 299.68 | 71.61 | 282.28 | 0.9473 | -246.3 | -25.7 | |
| 3.64 | 10.57 | 5.37 | 15.56 | 13.16 | 298.94 | 70.88 | 282.34 | 0.9432 | 403.5 | 427.8 | |
| 2.25 | -4.00 | 3.33 | -4.00 | 13.50 | 298.98 | 70.92 | 282.69 | 0.9434 | 386.8 | 999999 | |
| 4.68 | 8.15 | 6.68 | 11.64 | 12.72 | 298.28 | 70.21 | 281.87 | 0.9394 | 496.1 | 536.6 | |
| 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. | |