SDO HMI 2013-06-21 11:59:10 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 |
| 19.44 | 139.31 | 11.50 | 82.53 | -14.78 | 253.20 | 29.14 | 239.13 | 0.5506 | 1053.1 | 398.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-06-21 11:59:10 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 |
| 0.64 | 139.31 | 0.38 | 82.53 | -14.73 | 253.50 | 29.44 | 239.45 | 0.5540 | 673.6 | 398.9 | |
| 0.82 | -1.00 | 0.48 | -1.00 | -14.72 | 253.28 | 29.22 | 239.29 | 0.5513 | 1019.2 | 999999 | |
| 8.08 | -1.00 | 4.79 | -1.00 | -14.98 | 253.25 | 29.18 | 238.85 | 0.5525 | 1010.8 | 999999 | |
| 8.08 | -1.00 | 4.78 | -1.00 | -14.59 | 253.12 | 29.06 | 239.36 | 0.5483 | 1185.4 | 999999 | |
| 1.82 | -1.00 | 1.07 | -1.00 | -14.81 | 252.97 | 28.91 | 238.89 | 0.5480 | 1187.7 | 999999 | |
| 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. | |