SDO HMI 2014-09-27 21:00:33 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 |
| 8.73 | 55.05 | 17.07 | 108.59 | -1.11 | 150.79 | -75.18 | 92.95 | 0.9689 | 322.9 | 187.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-27 21:00:33 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 |
| 5.91 | 49.85 | 11.26 | 96.33 | -0.85 | 151.22 | -74.75 | 92.75 | 0.9670 | 469.2 | 206.8 | |
| 2.03 | -1.00 | 4.03 | -1.00 | -1.12 | 150.72 | -75.25 | 92.96 | 0.9693 | 49.2 | 999999 | |
| 0.79 | 3.88 | 1.78 | 8.70 | -2.29 | 149.04 | -76.93 | 93.93 | 0.9766 | 140.4 | 45.9 | |
| 0.00 | 1.32 | 0.00 | 3.56 | -3.23 | 147.05 | -78.92 | 94.60 | 0.9838 | 104.0 | 33.0 | |
| 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. | |