SDO HMI 2014-03-09 23:00:28 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 |
| 8.31 | 29.02 | 4.24 | 14.81 | 6.06 | 11.29 | -3.25 | 13.83 | 0.2394 | 365.7 | 200.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-09 23:00:28 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 | 1.73 | 0.00 | 0.89 | 7.40 | 15.25 | 0.71 | 357.22 | 0.2543 | 825.0 | 675.2 | |
| 2.94 | 5.11 | 1.50 | 2.60 | 6.12 | 13.06 | -1.48 | 6.33 | 0.2336 | -1061.4 | -844.2 | |
| 0.78 | 3.46 | 0.40 | 1.77 | 6.70 | 12.10 | -2.44 | 9.94 | 0.2458 | -987.6 | -812.4 | |
| 0.00 | 1.39 | 0.00 | 0.71 | 5.85 | 11.30 | -3.24 | 13.96 | 0.2344 | 865.0 | 558.3 | |
| 0.00 | 1.04 | 0.00 | 0.53 | 5.62 | 10.46 | -4.08 | 17.67 | 0.2344 | 791.0 | 677.8 | |
| 4.59 | 13.08 | 2.34 | 6.67 | 5.83 | 10.22 | -4.32 | 18.36 | 0.2392 | 1059.3 | 422.1 | |
| 0.00 | 2.08 | 0.00 | 1.06 | 5.53 | 10.19 | -4.35 | 18.88 | 0.2344 | 965.0 | 618.4 | |
| 0.00 | 1.13 | 0.00 | 0.58 | 6.02 | 9.77 | -4.77 | 19.86 | 0.2447 | 795.0 | 569.8 | |
| 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. | |