SDO HMI 2014-04-15 14:00:34 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 |
| 37.94 | 260.51 | 20.17 | 138.46 | 12.13 | 263.26 | 11.78 | 326.68 | 0.3647 | -1021.9 | -409.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-15 14:00:34 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 |
| 20.34 | 254.40 | 10.83 | 135.26 | 12.22 | 263.70 | 12.22 | 325.72 | 0.3688 | -1338.2 | -433.8 | |
| 4.69 | -1.00 | 2.49 | -1.00 | 11.90 | 263.50 | 12.01 | 325.67 | 0.3627 | -1449.0 | 999999 | |
| 12.91 | -1.00 | 6.85 | -1.00 | 11.99 | 263.22 | 11.73 | 326.43 | 0.3613 | -1509.7 | 999999 | |
| 0.00 | 0.71 | 0.00 | 0.38 | 17.23 | 257.77 | 6.29 | 344.88 | 0.4026 | -421.0 | -486.9 | |
| 0.00 | 1.77 | 0.00 | 0.93 | 13.50 | 254.58 | 3.10 | 350.86 | 0.3324 | 774.0 | 550.3 | |
| 0.00 | 1.15 | 0.00 | 0.60 | 13.19 | 254.33 | 2.85 | 351.45 | 0.3265 | 725.0 | 586.2 | |
| 0.00 | 1.33 | 0.00 | 0.69 | 12.11 | 254.07 | 2.59 | 351.73 | 0.3082 | 802.0 | 550.5 | |
| 0.00 | 1.15 | 0.00 | 0.60 | 10.82 | 243.26 | -8.23 | 26.56 | 0.3159 | 842.0 | 695.4 | |
| 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. | |