SDO HMI 2014-07-17 17:00:40 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 | 5.55 | 0.00 | 4.64 | -20.32 | 146.79 | 47.17 | 238.94 | 0.7994 | -187.8 | -66.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-17 17:00:40 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 | 1.18 | 0.00 | 1.22 | -20.52 | 156.80 | 57.18 | 243.66 | 0.8802 | 363.0 | 300.5 | |
| 0.00 | 1.09 | 0.00 | 0.91 | -8.47 | 151.62 | 52.00 | 255.94 | 0.8057 | 306.0 | 326.8 | |
| 0.00 | 1.00 | 0.00 | 0.82 | -24.13 | 145.34 | 45.72 | 234.97 | 0.8002 | -450.0 | -388.1 | |
| 0.00 | 0.73 | 0.00 | 0.60 | -24.69 | 144.93 | 45.31 | 234.13 | 0.7993 | -158.0 | -153.0 | |
| 0.00 | 0.73 | 0.00 | 0.58 | -23.78 | 144.19 | 44.57 | 234.76 | 0.7885 | -598.0 | -533.1 | |
| 0.00 | 0.82 | 0.00 | 0.51 | -25.82 | 121.70 | 22.08 | 214.07 | 0.6062 | -590.0 | -496.1 | |
| 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. | |