SDO HMI 2014-10-13 19:00:31 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 |
| 0.52 | 12.07 | 0.38 | 8.53 | -15.88 | 56.30 | 40.34 | 240.74 | 0.7158 | 350.2 | -8.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-13 19:00:31 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 |
| 0.52 | 1.49 | 0.38 | 1.07 | -15.61 | 57.53 | 41.57 | 241.79 | 0.7275 | 670.8 | 664.4 | |
| 0.00 | 2.80 | 0.00 | 2.01 | -16.08 | 57.36 | 41.39 | 241.11 | 0.7280 | 676.0 | 500.5 | |
| 0.00 | 1.57 | 0.00 | 1.12 | -15.48 | 57.04 | 41.08 | 241.69 | 0.7216 | 715.0 | 614.9 | |
| 0.00 | 6.21 | 0.00 | 4.33 | -15.96 | 55.32 | 39.36 | 240.07 | 0.7058 | -783.0 | -514.6 | |
| 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. | |