SDO HMI 2014-09-24 19:02:48 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 |
| 4.06 | 12.80 | 3.91 | 12.23 | 6.57 | 207.49 | -59.16 | 86.54 | 0.8563 | -7.4 | -1.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-24 19:02:48 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 | 1.50 | 0.00 | 1.34 | 6.57 | 209.97 | -56.68 | 86.75 | 0.8336 | -550.0 | -474.8 | |
| 0.00 | 0.97 | 0.00 | 0.89 | 7.48 | 208.78 | -57.87 | 85.57 | 0.8442 | -525.0 | -415.6 | |
| 1.94 | 4.15 | 1.82 | 3.89 | 6.26 | 208.15 | -58.50 | 86.96 | 0.8508 | -526.3 | -295.3 | |
| 0.00 | 1.06 | 0.00 | 1.04 | 6.65 | 206.64 | -60.00 | 86.37 | 0.8640 | 261.0 | 300.2 | |
| 2.12 | 4.15 | 2.09 | 4.10 | 6.71 | 206.32 | -60.32 | 86.28 | 0.8667 | 618.3 | 477.2 | |
| 0.00 | 0.97 | 0.00 | 0.97 | 6.29 | 206.10 | -60.55 | 86.74 | 0.8689 | 421.0 | 350.7 | |
| 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. | |