SDO HMI 2014-08-20 05:00:38 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 |
| 0.00 | 17.46 | 0.00 | 8.84 | 8.32 | 27.31 | 10.71 | 241.25 | 0.1966 | -521.0 | -477.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-20 05:00:38 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 | 1.53 | 0.00 | 0.78 | 7.00 | 29.72 | 13.12 | 271.36 | 0.2265 | -819.0 | -661.5 | |
| 0.00 | 2.16 | 0.00 | 1.10 | 7.30 | 29.70 | 13.10 | 272.71 | 0.2261 | -900.0 | -689.3 | |
| 0.00 | 1.89 | 0.00 | 0.96 | 7.04 | 29.47 | 12.87 | 271.52 | 0.2222 | -981.0 | -808.0 | |
| 0.00 | 1.62 | 0.00 | 0.82 | 8.41 | 29.17 | 12.57 | 277.86 | 0.2184 | -847.0 | -653.1 | |
| 0.00 | 1.26 | 0.00 | 0.64 | 8.36 | 28.95 | 12.35 | 277.71 | 0.2145 | -856.0 | -710.1 | |
| 0.00 | 1.08 | 0.00 | 0.55 | 7.72 | 28.80 | 12.21 | 274.79 | 0.2112 | -884.0 | -693.3 | |
| 0.00 | 4.68 | 0.00 | 2.37 | 8.15 | 28.50 | 11.91 | 276.97 | 0.2067 | -1042.0 | -799.6 | |
| 0.00 | 0.99 | 0.00 | 0.50 | 9.51 | 26.42 | 9.82 | 285.85 | 0.1757 | 740.0 | 606.4 | |
| 0.00 | 2.25 | 0.00 | 1.12 | 11.41 | 16.28 | -0.31 | 3.86 | 0.0798 | 900.0 | 706.2 | |
| 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. | |