SDO HMI 2014-09-18 20:00:34 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 |
| 43.71 | 219.63 | 37.83 | 190.32 | 7.92 | 289.75 | -55.55 | 85.32 | 0.8218 | -676.8 | -183.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-18 20:00:34 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 |
| 15.43 | 91.06 | 13.06 | 77.14 | 5.29 | 290.81 | -54.49 | 88.62 | 0.8130 | -819.1 | -220.3 | |
| 26.42 | 114.20 | 22.87 | 99.04 | 10.24 | 289.59 | -55.72 | 82.48 | 0.8224 | -847.5 | -216.4 | |
| 0.00 | 0.89 | 0.00 | 0.79 | 9.90 | 288.62 | -56.68 | 82.86 | 0.8318 | -155.0 | -80.5 | |
| 0.00 | 1.06 | 0.00 | 0.95 | 9.62 | 288.30 | -57.01 | 83.17 | 0.8350 | 152.0 | 134.7 | |
| 0.00 | 0.89 | 0.00 | 0.80 | 9.61 | 287.91 | -57.40 | 83.17 | 0.8387 | -380.0 | -311.0 | |
| 0.00 | 0.89 | 0.00 | 0.80 | 5.31 | 288.10 | -57.21 | 88.31 | 0.8395 | 525.0 | 454.5 | |
| 0.00 | 0.98 | 0.00 | 0.97 | 6.72 | 284.72 | -60.59 | 86.34 | 0.8689 | 471.0 | 392.6 | |
| 0.80 | 4.43 | 0.81 | 4.48 | 4.63 | 284.28 | -61.03 | 88.68 | 0.8742 | 49.4 | 236.6 | |
| 1.06 | 5.23 | 1.09 | 5.35 | 5.32 | 283.91 | -61.39 | 87.86 | 0.8767 | 400.9 | 266.7 | |
| 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. | |