SDO HMI 2014-04-20 00:00:34 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 |
| 19.41 | 93.37 | 16.36 | 79.78 | -8.83 | 247.89 | 54.75 | 262.85 | 0.8144 | 327.8 | 186.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-20 00:00:34 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 |
| 9.66 | 68.53 | 8.57 | 60.75 | -8.81 | 249.54 | 56.40 | 262.89 | 0.8316 | 595.7 | 210.0 | |
| 4.08 | -1.00 | 3.57 | -1.00 | -8.76 | 249.03 | 55.89 | 262.96 | 0.8267 | 754.3 | 999999 | |
| 0.00 | 1.51 | 0.00 | 1.30 | -8.73 | 248.54 | 55.40 | 262.99 | 0.8219 | 356.0 | 373.8 | |
| 0.00 | 1.60 | 0.00 | 1.35 | -7.31 | 247.67 | 54.53 | 264.75 | 0.8134 | 354.0 | 303.6 | |
| 0.00 | 0.98 | 0.00 | 0.77 | -10.45 | 244.45 | 51.31 | 260.78 | 0.7799 | -642.0 | -540.9 | |
| 1.24 | 2.84 | 0.97 | 2.22 | -10.14 | 244.08 | 50.94 | 261.16 | 0.7759 | -543.9 | -415.1 | |
| 0.00 | 0.71 | 0.00 | 0.55 | -9.88 | 243.98 | 50.84 | 261.50 | 0.7746 | -421.0 | -346.4 | |
| 0.00 | 1.42 | 0.00 | 1.08 | -8.75 | 242.75 | 49.61 | 262.95 | 0.7608 | 589.0 | 533.9 | |
| 0.00 | 2.93 | 0.00 | 2.22 | -8.36 | 242.63 | 49.49 | 263.46 | 0.7595 | 714.0 | 536.5 | |
| 0.00 | 0.80 | 0.00 | 0.60 | -8.57 | 242.62 | 49.48 | 263.18 | 0.7594 | 715.0 | 579.0 | |
| 0.00 | 1.06 | 0.00 | 0.81 | -9.13 | 242.53 | 49.40 | 262.45 | 0.7585 | 755.0 | 646.2 | |
| 0.00 | 1.77 | 0.00 | 1.34 | -9.43 | 242.54 | 49.41 | 262.05 | 0.7586 | 671.0 | 605.2 | |
| 1.15 | 3.55 | 0.85 | 2.63 | -9.32 | 241.41 | 48.27 | 262.16 | 0.7457 | -612.7 | -470.4 | |
| 3.28 | 5.67 | 2.40 | 4.16 | -8.54 | 240.81 | 47.68 | 263.20 | 0.7386 | -636.5 | -447.9 | |
| 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. | |