SDO HMI 2014-09-23 03:00:34 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 |
| 0.80 | 9.02 | 0.46 | 5.18 | 16.02 | 258.98 | -29.67 | 70.15 | 0.5078 | 537.8 | 465.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-23 03:00:34 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 | 1.59 | 0.00 | 0.89 | 15.32 | 262.01 | -26.64 | 70.11 | 0.4618 | -881.0 | -711.6 | |
| 0.00 | 1.59 | 0.00 | 0.91 | 17.69 | 259.51 | -29.15 | 66.72 | 0.5072 | 832.0 | 744.9 | |
| 0.00 | 1.06 | 0.00 | 0.61 | 14.97 | 258.95 | -29.71 | 72.23 | 0.5048 | 762.0 | 622.7 | |
| 0.80 | 3.36 | 0.46 | 1.95 | 16.03 | 257.83 | -30.82 | 70.65 | 0.5240 | 934.4 | 773.6 | |
| 0.00 | 1.42 | 0.00 | 0.82 | 15.70 | 257.89 | -30.76 | 71.25 | 0.5221 | 859.0 | 749.8 | |
| 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. | |