SDO HMI 2014-04-20 08:00:34 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 |
| 79.23 | 417.42 | 46.47 | 243.01 | 18.03 | 166.97 | -21.78 | 42.16 | 0.5267 | -383.7 | -326.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 08:00:34 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 |
| 21.03 | 366.23 | 12.15 | 211.73 | 18.19 | 168.16 | -20.58 | 40.49 | 0.5163 | -1219.4 | -429.0 | |
| 13.84 | -1.00 | 7.98 | -1.00 | 17.80 | 168.01 | -20.74 | 41.22 | 0.5136 | -1407.6 | 999999 | |
| 26.70 | -1.00 | 15.47 | -1.00 | 17.92 | 167.42 | -21.33 | 41.85 | 0.5208 | -1117.1 | 999999 | |
| 0.00 | 1.15 | 0.00 | 0.70 | 20.36 | 164.67 | -24.07 | 42.05 | 0.5730 | -590.0 | -460.5 | |
| 0.00 | 0.80 | 0.00 | 0.47 | 17.14 | 164.81 | -23.93 | 46.16 | 0.5396 | -327.0 | -195.1 | |
| 0.00 | 1.42 | 0.00 | 0.85 | 17.80 | 163.64 | -25.10 | 46.58 | 0.5583 | 792.0 | 656.0 | |
| 0.00 | 0.71 | 0.00 | 0.43 | 19.47 | 163.06 | -25.69 | 45.00 | 0.5801 | 743.0 | 586.0 | |
| 0.00 | 1.33 | 0.00 | 0.79 | 17.52 | 163.26 | -25.48 | 47.38 | 0.5597 | 623.0 | 571.9 | |
| 0.00 | 2.04 | 0.00 | 1.25 | 19.95 | 162.72 | -26.02 | 44.75 | 0.5880 | 737.0 | 596.3 | |
| 0.00 | 1.77 | 0.00 | 1.08 | 19.66 | 162.45 | -26.29 | 45.40 | 0.5880 | 772.0 | 689.8 | |
| 0.00 | 2.57 | 0.00 | 1.54 | 17.51 | 162.74 | -26.01 | 47.96 | 0.5652 | 859.0 | 702.0 | |
| 0.00 | 1.60 | 0.00 | 0.96 | 17.60 | 162.30 | -26.44 | 48.31 | 0.5707 | 864.0 | 703.2 | |
| 0.00 | 1.60 | 0.00 | 0.96 | 17.17 | 162.33 | -26.41 | 48.86 | 0.5665 | 952.0 | 708.4 | |
| 0.00 | 0.89 | 0.00 | 0.54 | 19.42 | 161.85 | -26.89 | 46.34 | 0.5919 | 627.0 | 518.8 | |
| 0.00 | 0.98 | 0.00 | 0.59 | 18.43 | 161.99 | -26.76 | 47.51 | 0.5815 | 760.0 | 642.5 | |
| 0.00 | 2.31 | 0.00 | 1.40 | 18.63 | 161.92 | -26.83 | 47.31 | 0.5840 | 719.0 | 633.4 | |
| 0.00 | 1.24 | 0.00 | 0.75 | 17.20 | 161.73 | -27.02 | 49.45 | 0.5733 | 754.0 | 598.1 | |
| 0.00 | 1.86 | 0.00 | 1.13 | 17.57 | 161.45 | -27.29 | 49.22 | 0.5795 | 490.0 | 495.6 | |
| 0.00 | 1.06 | 0.00 | 0.69 | 22.76 | 159.85 | -28.89 | 44.20 | 0.6414 | 593.0 | 427.3 | |
| 14.20 | 18.28 | 8.73 | 11.24 | 18.14 | 160.50 | -28.25 | 49.40 | 0.5946 | 961.0 | 622.0 | |
| 3.46 | 9.58 | 2.14 | 5.91 | 18.03 | 160.05 | -28.70 | 49.98 | 0.5985 | 749.6 | 559.9 | |
| 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. | |