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 |
| 0.00 | 7.53 | 0.00 | 3.78 | 15.51 | 358.41 | -1.05 | 5.06 | 0.1712 | -880.4 | -692.1 | |
|
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 | 1.05 | 0.00 | 0.53 | 14.79 | 0.34 | 0.88 | 354.52 | 0.1560 | -992.0 | -845.2 | |
| 0.00 | 1.40 | 0.00 | 0.70 | 14.67 | 0.00 | 0.54 | 356.58 | 0.1535 | -900.0 | -704.1 | |
| 0.00 | 1.75 | 0.00 | 0.88 | 15.06 | 359.79 | 0.32 | 358.04 | 0.1601 | -846.0 | -674.5 | |
| 0.00 | 1.84 | 0.00 | 0.92 | 15.82 | 356.74 | -2.72 | 14.83 | 0.1792 | -830.0 | -688.5 | |
| 0.00 | 1.49 | 0.00 | 0.75 | 16.97 | 356.01 | -3.45 | 16.68 | 0.2016 | -834.0 | -598.8 | |
| 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. | |