SDO HMI 2014-08-12 12:00:39 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 |
| 0.00 | 8.47 | 0.00 | 4.67 | -15.51 | 104.88 | -13.62 | 148.56 | 0.4373 | 695.2 | 582.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-12 12:00:39 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 |
| 0.00 | 0.99 | 0.00 | 0.54 | -15.67 | 107.54 | -10.96 | 154.00 | 0.4193 | 623.0 | 415.1 | |
| 0.00 | 1.17 | 0.00 | 0.62 | -9.98 | 107.42 | -11.08 | 146.08 | 0.3406 | 686.0 | 625.9 | |
| 0.00 | 1.44 | 0.00 | 0.80 | -17.12 | 105.11 | -13.39 | 150.90 | 0.4569 | 720.0 | 569.6 | |
| 0.00 | 2.80 | 0.00 | 1.55 | -16.39 | 105.00 | -13.50 | 149.88 | 0.4480 | 741.0 | 661.5 | |
| 0.00 | 0.99 | 0.00 | 0.54 | -12.78 | 102.66 | -15.84 | 140.75 | 0.4226 | 757.0 | 576.5 | |
| 0.00 | 1.08 | 0.00 | 0.62 | -18.97 | 101.37 | -17.13 | 146.76 | 0.5103 | 644.0 | 507.2 | |
| 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. | |