SDO HMI 2014-07-18 10:00:40 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 | 6.26 | 0.00 | 3.31 | -13.01 | 95.63 | 5.38 | 197.81 | 0.3400 | 390.0 | 277.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-18 10:00:40 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 | 1.72 | 0.00 | 0.91 | -12.26 | 102.17 | 11.92 | 214.95 | 0.3539 | 850.0 | 669.1 | |
| 0.00 | 0.82 | 0.00 | 0.43 | -9.02 | 101.61 | 11.35 | 219.66 | 0.3060 | 807.0 | 609.6 | |
| 0.00 | 1.27 | 0.00 | 0.65 | -7.38 | 98.07 | 7.82 | 213.05 | 0.2485 | 874.0 | 633.0 | |
| 0.00 | 0.91 | 0.00 | 0.52 | -25.29 | 92.78 | 2.53 | 184.57 | 0.5024 | 415.0 | 359.7 | |
| 0.00 | 1.54 | 0.00 | 0.80 | -12.60 | 84.86 | -5.39 | 162.78 | 0.3111 | -996.0 | -684.8 | |
| 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. | |