SDO HMI 2011-10-30 23:58:59 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 |
| 2.34 | 20.12 | 1.40 | 11.66 | 15.25 | 244.63 | 29.75 | 292.68 | 0.5197 | 543.9 | -9.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-30 23:58:59 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 |
| 2.34 | 10.31 | 1.40 | 6.18 | 14.41 | 248.24 | 33.36 | 289.06 | 0.5657 | -729.2 | -793.1 | |
| 0.00 | 1.04 | 0.00 | 0.59 | 16.56 | 241.27 | 26.39 | 296.91 | 0.4797 | 819.0 | 708.1 | |
| 0.00 | 1.30 | 0.00 | 0.73 | 16.35 | 241.17 | 26.29 | 296.57 | 0.4771 | 706.0 | 588.3 | |
| 0.00 | 0.87 | 0.00 | 0.49 | 16.54 | 241.09 | 26.21 | 296.99 | 0.4771 | 746.0 | 572.7 | |
| 0.00 | 1.65 | 0.00 | 0.92 | 16.05 | 240.92 | 26.04 | 296.18 | 0.4720 | 830.0 | 746.2 | |
| 0.00 | 2.43 | 0.00 | 1.36 | 15.82 | 240.68 | 25.80 | 295.89 | 0.4673 | 659.0 | 608.8 | |
| 0.00 | 1.39 | 0.00 | 0.77 | 16.22 | 240.39 | 25.51 | 296.92 | 0.4657 | 968.0 | 836.5 | |
| 0.00 | 1.13 | 0.00 | 0.62 | 16.39 | 238.13 | 23.25 | 299.19 | 0.4356 | 862.0 | 655.2 | |
| 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. | |