SDO HMI 2014-08-02 21:00:39 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 |
| 9.40 | 21.53 | 5.20 | 12.09 | -21.89 | 248.20 | 2.45 | 185.25 | 0.4704 | 607.8 | 410.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-02 21:00:39 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 | 0.90 | 0.00 | 0.50 | -20.52 | 251.27 | 5.52 | 191.46 | 0.4554 | 652.0 | 507.2 | |
| 0.00 | 0.54 | 0.00 | 0.29 | -16.97 | 250.77 | 5.03 | 192.18 | 0.3988 | 724.0 | 547.8 | |
| 0.00 | 1.27 | 0.00 | 0.72 | -22.77 | 249.43 | 3.69 | 187.05 | 0.4851 | 735.0 | 566.2 | |
| 5.06 | 13.48 | 2.80 | 7.46 | -20.40 | 248.89 | 3.14 | 186.62 | 0.4477 | 1008.5 | 640.0 | |
| 4.34 | -4.00 | 2.40 | -4.00 | -20.46 | 248.73 | 2.98 | 186.26 | 0.4484 | 954.6 | 999999 | |
| 0.00 | 1.63 | 0.00 | 0.93 | -23.74 | 248.30 | 2.55 | 184.70 | 0.4980 | 621.0 | 560.6 | |
| 0.00 | 1.72 | 0.00 | 0.99 | -24.29 | 247.10 | 1.36 | 182.45 | 0.5053 | 796.0 | 616.8 | |
| 0.00 | 0.81 | 0.00 | 0.49 | -29.10 | 243.22 | -2.53 | 176.16 | 0.5770 | -552.0 | -509.7 | |
| 0.00 | 1.18 | 0.00 | 0.71 | -28.63 | 242.16 | -3.59 | 174.46 | 0.5714 | -676.0 | -442.7 | |
| 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. | |