SDO HMI 2014-08-18 05:00:38 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 |
| 39.00 | 195.11 | 37.56 | 188.33 | 8.23 | 343.38 | -59.65 | 84.44 | 0.8601 | -646.0 | -235.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-18 05:00:38 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 |
| 1.80 | 187.64 | 1.71 | 180.76 | 8.11 | 344.02 | -59.01 | 84.62 | 0.8545 | -981.6 | -258.4 | |
| 33.15 | -1.00 | 31.93 | -1.00 | 8.30 | 343.43 | -59.60 | 84.37 | 0.8596 | -812.6 | 999999 | |
| 4.05 | -1.00 | 3.92 | -1.00 | 7.71 | 343.32 | -59.70 | 85.05 | 0.8608 | -444.6 | 999999 | |
| 0.00 | 0.72 | 0.00 | 0.70 | 7.10 | 343.03 | -60.00 | 85.74 | 0.8638 | 99.0 | 123.0 | |
| 0.00 | 0.99 | 0.00 | 0.98 | 7.24 | 342.69 | -60.34 | 85.54 | 0.8667 | 245.0 | 224.4 | |
| 0.00 | 1.98 | 0.00 | 1.99 | 8.04 | 342.06 | -60.97 | 84.59 | 0.8716 | 360.0 | 262.5 | |
| 0.00 | 1.26 | 0.00 | 1.26 | 6.91 | 342.13 | -60.90 | 85.88 | 0.8716 | -281.0 | -173.9 | |
| 0.00 | 2.25 | 0.00 | 2.33 | 9.96 | 340.98 | -62.05 | 82.33 | 0.8798 | 459.0 | 323.1 | |
| 0.00 | 0.27 | 0.00 | 0.31 | 9.84 | 337.80 | -65.23 | 82.30 | 0.9046 | 345.0 | 366.3 | |
| 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. | |