SDO HMI 2014-09-20 03:00:34 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 |
| 2.57 | 21.99 | 1.53 | 12.97 | -20.87 | 310.91 | -17.34 | 149.12 | 0.5432 | -377.4 | -214.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-20 03:00:34 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 | 2.22 | 0.00 | 1.27 | -19.33 | 313.93 | -14.32 | 152.16 | 0.5017 | 611.0 | 424.8 | |
| 0.00 | 2.66 | 0.00 | 1.52 | -18.90 | 313.61 | -14.64 | 151.20 | 0.4984 | 539.0 | 688.4 | |
| 0.00 | 1.15 | 0.00 | 0.67 | -19.98 | 312.75 | -15.50 | 150.89 | 0.5185 | 724.0 | 558.9 | |
| 0.00 | 1.15 | 0.00 | 0.66 | -18.54 | 312.46 | -15.79 | 148.95 | 0.5023 | 708.0 | 546.1 | |
| 0.71 | 1.86 | 0.42 | 1.11 | -21.81 | 310.24 | -18.01 | 149.02 | 0.5598 | -956.9 | -803.4 | |
| 0.62 | 2.04 | 0.37 | 1.21 | -21.02 | 310.14 | -18.11 | 148.09 | 0.5511 | -743.0 | -562.2 | |
| 0.00 | 1.51 | 0.00 | 0.90 | -21.92 | 310.02 | -18.23 | 148.83 | 0.5628 | -703.0 | -599.8 | |
| 0.00 | 2.22 | 0.00 | 1.32 | -21.54 | 310.07 | -18.18 | 148.52 | 0.5578 | -915.0 | -748.4 | |
| 0.00 | 0.98 | 0.00 | 0.59 | -21.97 | 309.53 | -18.72 | 148.21 | 0.5671 | -786.0 | -668.1 | |
| 0.00 | 1.15 | 0.00 | 0.69 | -22.12 | 309.41 | -18.84 | 148.19 | 0.5697 | -646.0 | -571.8 | |
| 1.24 | 2.48 | 0.74 | 1.49 | -21.63 | 309.44 | -18.81 | 147.75 | 0.5637 | -908.5 | -821.1 | |
| 0.00 | 0.98 | 0.00 | 0.59 | -22.43 | 309.26 | -18.99 | 148.30 | 0.5746 | -555.0 | -438.3 | |
| 0.00 | 0.35 | 0.00 | 0.21 | -21.78 | 309.22 | -19.03 | 147.59 | 0.5672 | -652.0 | -548.5 | |
| 0.00 | 1.24 | 0.00 | 0.74 | -21.16 | 309.20 | -19.05 | 146.94 | 0.5601 | -760.0 | -594.7 | |
| 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. | |