| group | Proj. U | Proj. WS | Corr. U | Corr. WS | B | L | LCM | Pos. angle | r | MU | MP |
| 7.20 | 33.12 | 4.01 | 18.40 | -18.42 | 113.41 | 9.43 | 200.05 | 0.4546 | -316.3 | -358.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-18 13:59:09 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 |
| 0.54 | 2.43 | 0.31 | 1.37 | -18.77 | 117.40 | 13.42 | 207.18 | 0.4832 | 848.2 | 677.4 | |
| 1.62 | 2.34 | 0.91 | 1.32 | -18.98 | 116.70 | 12.72 | 205.74 | 0.4813 | 682.8 | 694.1 | |
| 0.00 | 1.35 | 0.00 | 0.76 | -18.46 | 116.07 | 12.09 | 205.11 | 0.4700 | 790.0 | 591.3 | |
| 1.35 | 1.80 | 0.75 | 0.99 | -17.67 | 113.87 | 9.89 | 201.66 | 0.4453 | -744.9 | -576.6 | |
| 2.07 | 3.87 | 1.15 | 2.15 | -18.54 | 113.59 | 9.62 | 200.40 | 0.4563 | -985.3 | -723.5 | |
| 0.00 | 5.13 | 0.00 | 2.86 | -18.80 | 113.45 | 9.47 | 199.90 | 0.4594 | -662.0 | -670.6 | |
| 1.62 | 2.70 | 0.89 | 1.49 | -17.73 | 113.32 | 9.34 | 200.52 | 0.4430 | -907.6 | -780.0 | |
| 0.00 | 1.26 | 0.00 | 0.69 | -16.93 | 113.28 | 9.30 | 201.12 | 0.4311 | 721.0 | 660.4 | |
| 0.00 | 1.08 | 0.00 | 0.60 | -17.49 | 113.31 | 9.33 | 200.69 | 0.4395 | -546.0 | -541.2 | |
| 0.00 | 1.17 | 0.00 | 0.65 | -18.46 | 113.23 | 9.25 | 199.75 | 0.4533 | -735.0 | -617.8 | |
| 0.00 | 2.25 | 0.00 | 1.25 | -18.93 | 113.13 | 9.15 | 199.19 | 0.4596 | -690.0 | -493.4 | |
| 0.00 | 2.88 | 0.00 | 1.58 | -17.59 | 111.32 | 7.34 | 196.49 | 0.4310 | -755.0 | -599.5 | |
| 0.00 | 1.35 | 0.00 | 0.74 | -18.39 | 110.97 | 6.99 | 195.22 | 0.4416 | -704.0 | -578.1 | |
| 0.00 | 2.43 | 0.00 | 1.34 | -17.92 | 110.82 | 6.84 | 195.21 | 0.4338 | -809.0 | -598.9 | |
| 0.00 | 1.08 | 0.00 | 0.61 | -21.75 | 107.64 | 3.66 | 187.09 | 0.4829 | -591.0 | -502.9 | |
| 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. | |