SDO HMI 2014-04-18 12:00:34 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!)
| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 23.39 | 148.40 | 19.37 | 120.70 | 11.88 | 262.62 | 49.65 | 289.66 | 0.7922 | -504.6 | -174.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-18 12:00:34 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 |
| 12.05 | 136.97 | 10.02 | 113.56 | 11.93 | 263.84 | 50.87 | 289.12 | 0.8055 | -845.2 | -234.3 | |
| 11.34 | -1.00 | 9.35 | -1.00 | 11.62 | 263.52 | 50.55 | 288.86 | 0.8015 | -1157.1 | 999999 | |
| 0.00 | 1.51 | 0.00 | 0.99 | 16.27 | 248.53 | 35.56 | 302.20 | 0.6620 | 653.0 | 593.5 | |
| 0.00 | 2.30 | 0.00 | 1.44 | 12.93 | 245.78 | 32.81 | 299.51 | 0.6091 | 711.0 | 613.5 | |
| 0.00 | 1.15 | 0.00 | 0.71 | 12.85 | 245.47 | 32.50 | 299.62 | 0.6049 | 675.0 | 534.2 | |
| 0.00 | 1.24 | 0.00 | 0.77 | 12.93 | 245.26 | 32.30 | 299.90 | 0.6029 | 727.0 | 677.6 | |
| 0.00 | 1.95 | 0.00 | 1.20 | 12.77 | 245.09 | 32.12 | 299.78 | 0.5998 | 745.0 | 665.1 | |
| 0.00 | 1.06 | 0.00 | 0.66 | 13.18 | 245.04 | 32.08 | 300.42 | 0.6018 | 623.0 | 530.3 | |
| 0.00 | 1.33 | 0.00 | 0.82 | 13.30 | 244.99 | 32.02 | 300.65 | 0.6020 | 564.0 | 525.9 | |
| 0.00 | 0.89 | 0.00 | 0.55 | 12.82 | 244.85 | 31.88 | 300.05 | 0.5971 | 778.0 | 721.9 | |
| 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. | |