SDO HMI 2011-12-19 05:58:55 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 | 5.78 | 0.00 | 3.74 | -17.81 | 322.85 | 37.11 | 243.41 | 0.6446 | -467.8 | -424.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-19 05:58:55 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 | 0.85 | 0.00 | 0.57 | -16.95 | 325.74 | 40.00 | 246.02 | 0.6753 | 486.0 | 396.5 | |
| 0.00 | 1.87 | 0.00 | 1.21 | -17.79 | 322.82 | 37.08 | 243.45 | 0.6441 | -783.0 | -571.3 | |
| 0.00 | 0.34 | 0.00 | 0.22 | -17.98 | 322.17 | 36.43 | 242.83 | 0.6372 | -588.0 | -458.2 | |
| 0.00 | 1.53 | 0.00 | 0.98 | -18.01 | 322.06 | 36.32 | 242.72 | 0.6361 | -758.0 | -583.3 | |
| 0.00 | 1.19 | 0.00 | 0.76 | -18.17 | 321.95 | 36.20 | 242.43 | 0.6354 | -696.0 | -591.1 | |
| 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. | |