SDO HMI 2014-08-16 17:00:38 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 |
| 21.88 | 124.09 | 31.35 | 178.09 | 15.30 | 133.61 | 70.75 | 283.87 | 0.9394 | -467.8 | -140.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-16 17:00:38 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 |
| 11.98 | 123.10 | 17.50 | 177.03 | 15.59 | 134.10 | 71.24 | 284.19 | 0.9422 | -405.7 | -144.2 | |
| 2.43 | -1.00 | 3.44 | -1.00 | 15.29 | 133.37 | 70.51 | 283.86 | 0.9381 | -466.7 | 999999 | |
| 7.47 | -1.00 | 10.41 | -1.00 | 14.92 | 133.00 | 70.13 | 283.45 | 0.9359 | -658.1 | 999999 | |
| 0.00 | 0.99 | 0.00 | 1.06 | 10.25 | 126.08 | 63.22 | 278.10 | 0.8892 | 422.0 | 373.9 | |
| 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. | |