SDO HMI 2014-07-17 14:00:40 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 | 5.45 | 0.00 | 4.35 | -23.30 | 143.52 | 42.24 | 231.56 | 0.7700 | -213.3 | -102.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-17 14:00:40 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 | 0.91 | 0.00 | 0.89 | -20.23 | 156.48 | 55.20 | 243.33 | 0.8643 | 430.0 | 400.7 | |
| 0.00 | 1.00 | 0.00 | 0.98 | -20.60 | 156.63 | 55.35 | 242.97 | 0.8664 | 355.0 | 322.0 | |
| 0.00 | 0.27 | 0.00 | 0.22 | -22.96 | 146.16 | 44.88 | 235.86 | 0.7872 | -508.0 | -447.3 | |
| 0.00 | 1.45 | 0.00 | 1.13 | -24.15 | 143.80 | 42.52 | 233.21 | 0.7723 | -538.0 | -444.8 | |
| 0.00 | 0.73 | 0.00 | 0.46 | -27.56 | 124.10 | 22.81 | 213.16 | 0.6306 | -664.0 | -546.2 | |
| 0.00 | 1.09 | 0.00 | 0.67 | -27.05 | 119.13 | 17.85 | 207.67 | 0.5899 | -355.0 | -396.2 | |
| 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. | |