SDO HMI 2014-09-22 16:00:34 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 | 5.57 | 0.00 | 3.42 | -7.65 | 327.92 | 33.20 | 246.59 | 0.5929 | 32.2 | -124.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-22 16:00:34 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 | 1.15 | 0.00 | 0.73 | -7.06 | 331.11 | 36.39 | 249.52 | 0.6307 | 733.0 | 535.6 | |
| 0.00 | 0.88 | 0.00 | 0.56 | -7.82 | 330.88 | 36.16 | 248.27 | 0.6315 | 686.0 | 514.0 | |
| 0.00 | 1.59 | 0.00 | 0.97 | -7.92 | 326.70 | 31.98 | 245.44 | 0.5789 | -632.0 | -498.1 | |
| 0.00 | 1.95 | 0.00 | 1.16 | -7.71 | 325.50 | 30.78 | 244.90 | 0.5622 | -658.0 | -538.1 | |
| 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. | |