SDO HMI 2011-10-30 00:59:00 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 |
| 16.73 | 70.46 | 9.38 | 39.60 | 30.79 | 216.43 | -11.09 | 20.43 | 0.4741 | -979.6 | -464.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-30 00:59:00 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 |
| 16.73 | 66.74 | 9.38 | 37.44 | 30.71 | 216.68 | -10.84 | 20.14 | 0.4715 | -1193.8 | -475.8 | |
| 0.00 | 0.95 | 0.00 | 0.54 | 31.47 | 214.45 | -13.07 | 23.04 | 0.4946 | -783.0 | -641.2 | |
| 0.00 | 1.73 | 0.00 | 0.99 | 31.67 | 214.06 | -13.45 | 23.45 | 0.4996 | -765.0 | -639.2 | |
| 0.00 | 1.04 | 0.00 | 0.63 | 33.48 | 207.17 | -20.35 | 30.79 | 0.5688 | 619.0 | 489.3 | |
| 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. | |