SDO HMI 2014-08-25 04:00:38 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 |
| 0.00 | 15.47 | 0.00 | 8.64 | -9.49 | 332.94 | 21.86 | 232.80 | 0.4648 | 296.3 | 256.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-25 04:00:38 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 |
| 0.00 | 2.43 | 0.00 | 1.39 | -8.90 | 337.17 | 26.10 | 238.89 | 0.5097 | 836.0 | 663.3 | |
| 0.00 | 2.78 | 0.00 | 1.58 | -8.64 | 335.90 | 24.82 | 238.03 | 0.4913 | 812.0 | 684.9 | |
| 0.00 | 2.16 | 0.00 | 1.25 | -12.35 | 335.36 | 24.29 | 231.33 | 0.5166 | -811.0 | -684.4 | |
| 0.00 | 0.90 | 0.00 | 0.49 | -5.40 | 333.62 | 22.55 | 241.64 | 0.4356 | 630.0 | 505.9 | |
| 0.00 | 1.17 | 0.00 | 0.67 | -13.85 | 333.14 | 22.06 | 226.35 | 0.5061 | -549.0 | -413.4 | |
| 0.00 | 0.72 | 0.00 | 0.39 | -7.69 | 331.33 | 20.25 | 234.27 | 0.4244 | 716.0 | 456.4 | |
| 0.00 | 1.08 | 0.00 | 0.59 | -8.32 | 330.71 | 19.63 | 232.20 | 0.4225 | 731.0 | 535.8 | |
| 0.00 | 1.71 | 0.00 | 0.94 | -10.83 | 330.23 | 19.16 | 227.04 | 0.4423 | 463.0 | 395.6 | |
| 0.00 | 1.53 | 0.00 | 0.81 | -3.78 | 329.26 | 18.18 | 239.74 | 0.3620 | 814.0 | 637.8 | |
| 0.00 | 0.99 | 0.00 | 0.53 | -14.08 | 320.50 | 9.42 | 203.88 | 0.3939 | -679.0 | -553.5 | |
| 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. | |