SDO HMI 2014-04-16 21:00:34 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 |
| 29.99 | 212.25 | 17.89 | 126.41 | 11.97 | 263.35 | 28.94 | 301.43 | 0.5565 | -929.7 | -363.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-16 21:00:34 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 |
| 16.63 | 208.27 | 9.94 | 124.21 | 12.07 | 263.70 | 29.29 | 301.20 | 0.5614 | -1071.8 | -381.2 | |
| 4.42 | -1.00 | 2.64 | -1.00 | 11.75 | 263.63 | 29.21 | 300.77 | 0.5583 | -1122.5 | 999999 | |
| 8.67 | -1.00 | 5.15 | -1.00 | 11.80 | 263.32 | 28.90 | 301.11 | 0.5547 | -1377.8 | 999999 | |
| 0.27 | -1.00 | 0.16 | -1.00 | 11.79 | 263.07 | 28.65 | 301.31 | 0.5516 | -1378.0 | 999999 | |
| 0.00 | 1.68 | 0.00 | 0.94 | 13.40 | 255.18 | 20.77 | 312.64 | 0.4708 | 546.0 | 442.7 | |
| 0.00 | 1.15 | 0.00 | 0.66 | 16.05 | 255.09 | 20.67 | 316.80 | 0.4976 | 735.0 | 504.6 | |
| 0.00 | 1.15 | 0.00 | 0.60 | 11.29 | 243.96 | 9.55 | 330.49 | 0.3316 | 678.0 | 531.0 | |
| 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. | |