SDO HMI 2011-08-12 22:59:10 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 |
| 0.00 | 18.83 | 0.00 | 10.60 | -21.40 | 173.63 | -4.68 | 170.90 | 0.4771 | 247.3 | 147.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-12 22:59:10 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 |
| 0.00 | 2.16 | 0.00 | 1.19 | -18.87 | 176.93 | -1.38 | 176.96 | 0.4311 | 810.0 | 660.2 | |
| 0.00 | 1.53 | 0.00 | 0.85 | -20.54 | 175.03 | -3.28 | 173.29 | 0.4597 | 964.0 | 784.6 | |
| 0.00 | 0.90 | 0.00 | 0.50 | -20.31 | 174.84 | -3.47 | 172.83 | 0.4564 | 900.0 | 771.1 | |
| 0.00 | 0.90 | 0.00 | 0.50 | -20.58 | 174.81 | -3.50 | 172.84 | 0.4607 | 817.0 | 680.4 | |
| 0.00 | 2.98 | 0.00 | 1.66 | -20.78 | 174.64 | -3.67 | 172.56 | 0.4642 | 854.0 | 736.1 | |
| 0.00 | 1.71 | 0.00 | 0.95 | -20.45 | 174.39 | -3.92 | 171.95 | 0.4595 | 620.0 | 461.6 | |
| 0.00 | 0.90 | 0.00 | 0.50 | -20.10 | 174.36 | -3.95 | 171.79 | 0.4543 | 728.0 | 575.1 | |
| 0.00 | 1.71 | 0.00 | 0.97 | -22.45 | 173.44 | -4.87 | 170.79 | 0.4922 | -677.0 | -556.7 | |
| 0.00 | 2.71 | 0.00 | 1.57 | -24.32 | 172.57 | -5.74 | 169.90 | 0.5222 | -734.0 | -571.9 | |
| 0.00 | 1.98 | 0.00 | 1.15 | -24.50 | 172.06 | -6.25 | 169.10 | 0.5262 | -779.0 | -591.5 | |
| 0.00 | 1.35 | 0.00 | 0.76 | -18.95 | 166.47 | -11.84 | 155.60 | 0.4716 | -783.0 | -584.3 | |
| 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. | |