SDO HMI 2014-10-15 03:00:31 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 |
| 2.18 | 16.61 | 2.16 | 17.07 | -16.26 | 55.94 | 57.58 | 247.76 | 0.8771 | 1.8 | -70.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-15 03:00:31 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 | 1.31 | 0.00 | 1.47 | -16.13 | 58.79 | 60.42 | 248.74 | 0.8983 | 411.0 | 380.9 | |
| 0.00 | 0.87 | 0.00 | 0.97 | -16.51 | 58.35 | 59.98 | 248.22 | 0.8959 | 493.0 | 357.2 | |
| 0.00 | 3.50 | 0.00 | 3.79 | -16.55 | 57.74 | 59.38 | 248.00 | 0.8916 | 506.0 | 346.7 | |
| 0.00 | 0.79 | 0.00 | 0.79 | -15.72 | 55.27 | 56.91 | 248.15 | 0.8709 | -291.0 | -243.1 | |
| 0.52 | 1.75 | 0.52 | 1.73 | -15.65 | 54.85 | 56.48 | 248.10 | 0.8673 | -483.7 | -471.4 | |
| 0.96 | 8.39 | 0.95 | 8.32 | -16.27 | 54.72 | 56.35 | 247.36 | 0.8679 | -486.9 | -375.0 | |
| 0.70 | -6.00 | 0.69 | -6.00 | -16.32 | 54.51 | 56.15 | 247.25 | 0.8663 | -570.6 | 999999 | |
| 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. | |