SDO HMI 2011-12-03 12:58:56 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 | 4.18 | 0.00 | 2.12 | -9.94 | 126.20 | -6.54 | 148.41 | 0.2175 | 850.8 | 625.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-03 12:58:56 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 | 0.60 | 0.00 | 0.30 | -11.78 | 129.20 | -3.54 | 164.25 | 0.2240 | 868.0 | 654.4 | |
| 0.00 | 0.85 | 0.00 | 0.43 | -8.83 | 127.19 | -5.55 | 149.78 | 0.1908 | 842.0 | 596.5 | |
| 0.00 | 1.45 | 0.00 | 0.74 | -11.00 | 125.25 | -7.50 | 147.53 | 0.2396 | 910.0 | 673.3 | |
| 0.00 | 1.28 | 0.00 | 0.65 | -8.63 | 125.24 | -7.50 | 141.19 | 0.2069 | 783.0 | 575.2 | |
| 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. | |