SDO HMI 2014-04-07 22:00:33 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 |
| 12.59 | 101.78 | 33.64 | 324.13 | 12.34 | 273.42 | -79.26 | 76.40 | 0.9868 | -150.8 | -4.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-07 22:00:33 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 |
| 12.15 | 79.06 | 30.96 | 204.18 | 11.43 | 275.50 | -77.18 | 77.02 | 0.9817 | -183.9 | -101.0 | |
| 0.00 | 5.81 | 0.00 | 17.77 | 12.68 | 273.76 | -78.92 | 76.03 | 0.9874 | 74.0 | 112.2 | |
| 0.00 | 6.87 | 0.00 | 38.74 | 14.53 | 269.64 | -83.04 | 74.75 | 0.9964 | 444.0 | 323.1 | |
| 0.44 | 10.04 | 2.68 | 63.44 | 13.86 | 268.92 | -83.76 | 75.51 | 0.9972 | -73.8 | 25.5 | |
| 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. | |