SDO HMI 2011-04-27 03:59:06 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 |
| 4.09 | 16.39 | 2.83 | 11.13 | -17.32 | 122.22 | -42.14 | 110.57 | 0.6861 | -221.5 | -160.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-27 03:59:06 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 | 0.98 | 0.00 | 0.63 | -17.40 | 126.33 | -38.03 | 112.03 | 0.6365 | 652.0 | 490.4 | |
| 0.00 | 1.34 | 0.00 | 0.86 | -16.67 | 125.95 | -38.42 | 110.77 | 0.6389 | 856.0 | 711.3 | |
| 0.00 | 1.60 | 0.00 | 1.06 | -17.06 | 123.84 | -40.52 | 110.66 | 0.6661 | 652.0 | 486.2 | |
| 0.00 | 1.07 | 0.00 | 0.73 | -18.13 | 121.67 | -42.69 | 111.54 | 0.6951 | -579.0 | -501.8 | |
| 0.00 | 2.31 | 0.00 | 1.58 | -16.63 | 121.63 | -42.73 | 109.40 | 0.6917 | -542.0 | -458.1 | |
| 4.09 | 7.57 | 2.83 | 5.23 | -17.61 | 121.22 | -43.14 | 110.67 | 0.6989 | -745.2 | -500.1 | |
| 0.00 | 1.07 | 0.00 | 0.73 | -17.09 | 121.37 | -42.99 | 109.98 | 0.6958 | -549.0 | -454.7 | |
| 0.00 | 0.45 | 0.00 | 0.31 | -17.26 | 121.14 | -43.22 | 110.16 | 0.6989 | -559.0 | -462.2 | |
| 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. | |