SDO HMI 2014-08-22 01:00:38 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 |
| 6.21 | 21.49 | 6.50 | 21.45 | 15.36 | 53.26 | 60.90 | 283.82 | 0.8678 | -128.8 | 154.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-22 01:00:38 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 | 0.81 | 0.00 | 1.03 | 10.15 | 60.24 | 67.88 | 278.12 | 0.9228 | -280.0 | -268.1 | |
| 1.44 | 2.88 | 1.70 | 3.41 | 14.75 | 58.49 | 66.13 | 283.08 | 0.9096 | -516.2 | -400.9 | |
| 3.24 | 5.75 | 3.43 | 6.10 | 16.01 | 55.30 | 62.94 | 284.47 | 0.8860 | -464.3 | -279.8 | |
| 0.00 | 0.72 | 0.00 | 0.72 | 16.32 | 53.50 | 61.14 | 284.86 | 0.8716 | -85.0 | -186.8 | |
| 0.00 | 0.81 | 0.00 | 0.77 | 15.22 | 51.49 | 59.13 | 283.62 | 0.8542 | 288.0 | 230.2 | |
| 0.00 | 0.54 | 0.00 | 0.51 | 14.78 | 51.17 | 58.81 | 283.12 | 0.8513 | 430.0 | 357.0 | |
| 1.53 | 9.98 | 1.37 | 8.91 | 15.72 | 49.31 | 56.95 | 284.29 | 0.8348 | 558.5 | 503.0 | |
| 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. | |