SDO HMI 2011-02-14 19:58:57 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 |
| 9.59 | 23.81 | 5.41 | 13.34 | 19.64 | 33.49 | 8.46 | 342.81 | 0.4689 | -375.3 | 386.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-02-14 19:58:57 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 |
| 9.59 | 13.10 | 5.41 | 7.39 | 19.69 | 35.80 | 10.77 | 338.39 | 0.4797 | -963.0 | -536.8 | |
| 0.00 | 7.71 | 0.00 | 4.28 | 19.44 | 31.18 | 6.15 | 347.11 | 0.4549 | 437.0 | 701.0 | |
| 0.00 | 1.03 | 0.00 | 0.57 | 19.14 | 31.10 | 6.08 | 347.10 | 0.4501 | 833.0 | 638.3 | |
| 0.00 | 1.97 | 0.00 | 1.10 | 20.34 | 28.17 | 3.15 | 353.56 | 0.4608 | 784.0 | 694.2 | |
| 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. | |