SDO HMI 2014-03-07 09:01:13 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 | 4.51 | 0.00 | 4.14 | 16.99 | 101.19 | 52.60 | 295.59 | 0.8437 | -32.0 | 126.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-07 09:01:13 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 | 1.13 | 0.00 | 1.14 | 16.37 | 105.27 | 56.68 | 293.35 | 0.8752 | -316.0 | -209.1 | |
| 0.00 | 0.43 | 0.00 | 0.40 | 17.17 | 101.33 | 52.74 | 295.69 | 0.8460 | -611.0 | -533.8 | |
| 0.00 | 0.35 | 0.00 | 0.32 | 16.85 | 101.05 | 52.46 | 295.45 | 0.8426 | -113.0 | -109.0 | |
| 0.00 | 1.47 | 0.00 | 1.28 | 16.53 | 99.12 | 50.53 | 295.88 | 0.8247 | 493.0 | 454.4 | |
| 0.00 | 1.13 | 0.00 | 1.00 | 18.25 | 99.19 | 50.60 | 297.78 | 0.8317 | 387.0 | 427.5 | |
| 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. | |