SDO HMI 2014-04-07 20:00:32 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 |
| 11.62 | 99.90 | 32.85 | 373.55 | 12.37 | 273.13 | -80.66 | 76.57 | 0.9901 | -51.0 | 9.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-07 20:00:32 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 | 1.67 | 0.00 | 8.36 | 14.45 | 271.45 | -82.33 | 74.73 | 0.9953 | 134.0 | 133.2 | |
| 11.62 | 80.71 | 32.85 | 232.54 | 11.47 | 275.40 | -78.38 | 77.16 | 0.9854 | -82.2 | -65.5 | |
| 0.00 | 1.06 | 0.00 | 3.75 | 12.98 | 273.44 | -80.34 | 75.92 | 0.9910 | 253.0 | 172.9 | |
| 0.00 | 6.25 | 0.00 | 43.64 | 14.44 | 269.54 | -84.25 | 74.99 | 0.9979 | 363.0 | 247.0 | |
| 0.00 | 10.21 | 0.00 | 85.26 | 13.54 | 268.91 | -84.87 | 75.96 | 0.9984 | 70.0 | 42.7 | |
| 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. | |