SDO HMI 2011-08-30 10:59:08 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 | 11.29 | 0.00 | 6.11 | 17.20 | 328.80 | 21.73 | 298.29 | 0.4025 | 80.2 | -27.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 10:59:08 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 | 1.52 | 0.00 | 0.85 | 17.47 | 333.04 | 25.97 | 294.58 | 0.4612 | -695.0 | -548.8 | |
| 0.00 | 1.97 | 0.00 | 1.08 | 14.29 | 332.08 | 25.01 | 288.31 | 0.4334 | -743.0 | -597.5 | |
| 0.00 | 1.34 | 0.00 | 0.75 | 18.79 | 332.54 | 25.47 | 297.64 | 0.4615 | -818.0 | -679.4 | |
| 0.00 | 0.90 | 0.00 | 0.49 | 16.57 | 331.33 | 24.27 | 293.85 | 0.4325 | -658.0 | -545.8 | |
| 0.00 | 2.15 | 0.00 | 1.15 | 17.73 | 326.76 | 19.69 | 300.69 | 0.3748 | 616.0 | 527.0 | |
| 0.00 | 1.08 | 0.00 | 0.57 | 16.96 | 326.64 | 19.57 | 298.96 | 0.3678 | 728.0 | 572.8 | |
| 0.00 | 0.36 | 0.00 | 0.19 | 17.49 | 326.56 | 19.50 | 300.34 | 0.3704 | 707.0 | 722.2 | |
| 0.00 | 0.81 | 0.00 | 0.43 | 17.49 | 325.76 | 18.69 | 301.29 | 0.3592 | 819.0 | 691.3 | |
| 0.00 | 1.16 | 0.00 | 0.60 | 19.50 | 319.02 | 11.95 | 317.94 | 0.2927 | 766.0 | 586.0 | |
| 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. | |