| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 0.00 | 13.55 | 0.00 | 7.62 | -20.89 | 310.93 | 1.36 | 182.79 | 0.4715 | -428.0 | -345.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-21 13:00:34 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 | 0.97 | 0.00 | 0.54 | -18.57 | 312.72 | 3.15 | 186.86 | 0.4373 | 743.0 | 569.7 | |
| 0.00 | 2.83 | 0.00 | 1.58 | -19.91 | 312.42 | 2.85 | 185.89 | 0.4577 | 336.0 | 234.8 | |
| 0.00 | 0.89 | 0.00 | 0.50 | -21.23 | 311.73 | 2.16 | 184.25 | 0.4772 | -757.0 | -643.2 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -20.99 | 311.60 | 2.03 | 184.02 | 0.4733 | -890.0 | -761.2 | |
| 0.00 | 1.33 | 0.00 | 0.75 | -20.92 | 311.38 | 1.80 | 183.59 | 0.4720 | -834.0 | -727.4 | |
| 0.00 | 1.33 | 0.00 | 0.75 | -21.57 | 310.22 | 0.65 | 181.25 | 0.4812 | -590.0 | -430.7 | |
| 0.00 | 1.24 | 0.00 | 0.70 | -22.01 | 309.63 | 0.06 | 180.12 | 0.4880 | -516.0 | -477.9 | |
| 0.00 | 2.92 | 0.00 | 1.65 | -21.36 | 309.60 | 0.03 | 180.06 | 0.4779 | -719.0 | -600.2 | |
| 0.00 | 0.89 | 0.00 | 0.50 | -21.81 | 309.28 | -0.29 | 179.44 | 0.4848 | -625.0 | -598.9 | |
| 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. | |