SDO HMI 2014-09-29 16:00:33 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 |
| 34.46 | 193.46 | 26.67 | 150.38 | -1.27 | 152.48 | -49.86 | 97.31 | 0.7727 | 725.1 | 309.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-29 16:00:33 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 |
| 29.88 | 179.62 | 23.11 | 138.97 | -1.30 | 152.73 | -49.61 | 97.41 | 0.7701 | 904.7 | 321.8 | |
| 4.58 | -1.00 | 3.56 | -1.00 | -0.90 | 152.46 | -49.88 | 96.83 | 0.7723 | 550.4 | 999999 | |
| 0.00 | 4.58 | 0.00 | 3.65 | -0.74 | 151.18 | -51.16 | 96.37 | 0.7859 | 539.0 | 461.0 | |
| 0.00 | 1.41 | 0.00 | 1.12 | -0.50 | 151.19 | -51.15 | 96.06 | 0.7854 | 642.0 | 431.7 | |
| 0.00 | 1.06 | 0.00 | 0.85 | -1.79 | 150.96 | -51.38 | 97.64 | 0.7902 | 318.0 | 175.4 | |
| 0.00 | 1.50 | 0.00 | 1.24 | -1.14 | 149.46 | -52.88 | 96.52 | 0.8047 | -483.0 | -316.5 | |
| 0.00 | 2.12 | 0.00 | 1.77 | -1.32 | 149.25 | -53.09 | 96.69 | 0.8070 | -256.0 | -184.7 | |
| 0.00 | 3.17 | 0.00 | 2.78 | -3.23 | 147.65 | -54.69 | 98.66 | 0.8263 | 63.0 | 205.8 | |
| 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. | |