SDO HMI 2014-05-18 14:00:38 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 |
| 1.35 | 11.33 | 0.94 | 7.86 | -18.35 | 217.63 | 42.28 | 245.84 | 0.7022 | -620.1 | -547.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-18 14:00:38 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 | 2.07 | 0.00 | 1.45 | -18.68 | 218.20 | 42.86 | 245.59 | 0.7099 | -491.0 | -414.6 | |
| 1.35 | 4.40 | 0.94 | 3.07 | -18.37 | 217.89 | 42.55 | 245.89 | 0.7053 | -731.1 | -594.1 | |
| 0.00 | 3.60 | 0.00 | 2.49 | -18.70 | 217.47 | 42.12 | 245.29 | 0.7017 | -671.0 | -633.3 | |
| 0.00 | 1.26 | 0.00 | 0.85 | -16.65 | 216.17 | 40.82 | 247.66 | 0.6794 | -594.0 | -403.3 | |
| 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. | |