SDO HMI 2013-08-16 04:59:08 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 |
| 20.36 | 121.13 | 27.84 | 166.48 | -7.07 | 139.49 | -67.54 | 100.29 | 0.9336 | 516.2 | 101.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2013-08-16 04:59:08 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 | 2.16 | 0.00 | 2.81 | -6.70 | 140.69 | -66.34 | 100.12 | 0.9257 | 95.0 | 123.9 | |
| 17.12 | 117.71 | 23.35 | 161.69 | -7.07 | 139.56 | -67.47 | 100.31 | 0.9332 | 678.9 | 100.3 | |
| 3.24 | -2.00 | 4.49 | -2.00 | -7.14 | 139.21 | -67.82 | 100.31 | 0.9354 | -171.2 | 999999 | |
| 0.00 | 1.26 | 0.00 | 1.98 | -6.60 | 136.51 | -70.52 | 99.27 | 0.9503 | 224.0 | 125.0 | |
| 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. | |