SDO HMI 2014-09-04 06:00:36 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 | 6.08 | 0.00 | 3.47 | -20.77 | 168.18 | -9.69 | 161.41 | 0.4962 | 517.8 | 477.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-04 06:00:36 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 | 0.72 | 0.00 | 0.41 | -21.96 | 170.13 | -7.74 | 165.60 | 0.5045 | 307.0 | 365.6 | |
| 0.00 | 1.70 | 0.00 | 0.98 | -22.18 | 169.56 | -8.31 | 164.71 | 0.5099 | 592.0 | 464.7 | |
| 0.00 | 1.07 | 0.00 | 0.60 | -18.66 | 169.33 | -8.54 | 162.09 | 0.4595 | 673.0 | 601.0 | |
| 0.00 | 0.89 | 0.00 | 0.50 | -19.27 | 167.68 | -10.20 | 159.39 | 0.4767 | 550.0 | 476.5 | |
| 0.00 | 0.45 | 0.00 | 0.25 | -18.31 | 166.89 | -10.98 | 157.15 | 0.4675 | 648.0 | 678.4 | |
| 0.00 | 1.25 | 0.00 | 0.73 | -21.80 | 165.07 | -12.80 | 156.91 | 0.5265 | 337.0 | 387.1 | |
| 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. | |