SDO HMI 2014-09-18 18:00:34 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 |
| 20.75 | 59.51 | 14.61 | 41.48 | -21.05 | 311.05 | -35.36 | 129.89 | 0.7058 | -341.5 | -145.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-18 18:00:34 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 |
| 0.00 | 1.51 | 0.00 | 1.00 | -20.56 | 315.10 | -31.31 | 132.63 | 0.6637 | 798.0 | 655.1 | |
| 0.00 | 2.39 | 0.00 | 1.59 | -20.61 | 314.90 | -31.51 | 132.51 | 0.6660 | 806.0 | 606.3 | |
| 1.33 | 2.84 | 0.89 | 1.90 | -20.01 | 313.29 | -33.12 | 130.43 | 0.6768 | 775.6 | 589.2 | |
| 0.00 | 0.80 | 0.00 | 0.53 | -18.84 | 313.34 | -33.08 | 129.05 | 0.6674 | 701.0 | 526.8 | |
| 0.00 | 1.42 | 0.00 | 0.95 | -19.40 | 312.94 | -33.47 | 129.41 | 0.6756 | 610.0 | 474.0 | |
| 0.89 | 3.28 | 0.60 | 2.22 | -20.10 | 312.54 | -33.87 | 129.92 | 0.6848 | 859.8 | 668.3 | |
| 1.42 | 4.43 | 0.97 | 3.02 | -20.42 | 312.38 | -34.03 | 130.17 | 0.6887 | 688.7 | 476.2 | |
| 0.00 | 2.22 | 0.00 | 1.51 | -19.95 | 312.27 | -34.15 | 129.53 | 0.6864 | 677.0 | 518.1 | |
| 0.00 | 1.33 | 0.00 | 0.92 | -21.47 | 311.87 | -34.54 | 130.99 | 0.7014 | -841.0 | -665.5 | |
| 0.00 | 1.51 | 0.00 | 1.06 | -22.06 | 311.27 | -35.15 | 131.19 | 0.7113 | -603.0 | -535.9 | |
| 0.00 | 2.13 | 0.00 | 1.49 | -21.63 | 311.11 | -35.30 | 130.58 | 0.7096 | -903.0 | -741.4 | |
| 0.00 | 0.80 | 0.00 | 0.56 | -21.46 | 310.72 | -35.69 | 130.08 | 0.7120 | -746.0 | -643.8 | |
| 8.78 | 14.81 | 6.21 | 10.46 | -21.42 | 310.25 | -36.16 | 129.69 | 0.7161 | -880.9 | -700.9 | |
| 0.00 | 1.33 | 0.00 | 0.95 | -22.07 | 309.90 | -36.51 | 130.16 | 0.7239 | -608.0 | -476.3 | |
| 0.00 | 1.42 | 0.00 | 1.00 | -21.17 | 310.05 | -36.37 | 129.24 | 0.7163 | -707.0 | -596.0 | |
| 3.72 | 7.18 | 2.63 | 5.07 | -20.90 | 310.00 | -36.41 | 128.90 | 0.7149 | -817.6 | -529.6 | |
| 0.00 | 0.89 | 0.00 | 0.63 | -21.42 | 309.85 | -36.56 | 129.39 | 0.7199 | -554.0 | -528.2 | |
| 2.75 | 9.22 | 1.97 | 6.62 | -21.62 | 309.43 | -36.99 | 129.31 | 0.7252 | -693.8 | -417.3 | |
| 1.86 | -18.00 | 1.34 | -18.00 | -21.87 | 309.35 | -37.06 | 129.54 | 0.7276 | -449.8 | 999999 | |
| 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. | |