SDO HMI 2014-10-15 01:00:31 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 |
| 6.47 | 16.24 | 6.23 | 16.01 | -16.36 | 55.57 | 56.10 | 247.17 | 0.8659 | -199.9 | -68.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-15 01:00:31 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 | 0.26 | 0.00 | 0.28 | -16.18 | 58.71 | 59.24 | 248.35 | 0.8899 | 377.0 | 311.7 | |
| 0.00 | 1.92 | 0.00 | 2.05 | -16.49 | 58.25 | 58.78 | 247.88 | 0.8871 | 483.0 | 382.0 | |
| 0.00 | 1.57 | 0.00 | 1.65 | -16.47 | 57.70 | 58.23 | 247.73 | 0.8830 | 606.0 | 419.0 | |
| 0.00 | 0.26 | 0.00 | 0.25 | -15.64 | 55.25 | 55.79 | 247.87 | 0.8617 | -336.0 | -334.7 | |
| 0.70 | 1.57 | 0.67 | 1.51 | -15.58 | 54.90 | 55.43 | 247.83 | 0.8586 | -484.2 | -442.6 | |
| 5.77 | 10.66 | 5.56 | 10.27 | -16.45 | 54.71 | 55.25 | 246.79 | 0.8594 | -512.7 | -376.4 | |
| 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. | |