SDO HMI 2011-12-15 19:58:55 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 |
| 19.74 | 127.44 | 11.14 | 71.71 | 8.35 | 357.54 | 26.78 | 289.78 | 0.4755 | -340.4 | -294.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-15 19:58:55 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 |
| 19.74 | 113.90 | 11.14 | 64.36 | 8.29 | 358.02 | 27.26 | 289.29 | 0.4822 | -1211.4 | -404.7 | |
| 0.00 | 1.11 | 0.00 | 0.61 | 6.73 | 355.96 | 25.20 | 287.32 | 0.4448 | -735.0 | -607.9 | |
| 0.00 | 2.21 | 0.00 | 1.21 | 9.55 | 354.18 | 23.42 | 294.76 | 0.4335 | 740.0 | 608.9 | |
| 0.00 | 1.62 | 0.00 | 0.88 | 8.26 | 353.99 | 23.23 | 292.12 | 0.4232 | 818.0 | 633.0 | |
| 0.00 | 2.38 | 0.00 | 1.31 | 9.67 | 353.99 | 23.23 | 295.18 | 0.4315 | 694.0 | 507.0 | |
| 0.00 | 1.45 | 0.00 | 0.79 | 9.40 | 353.26 | 22.50 | 295.27 | 0.4193 | 871.0 | 611.6 | |
| 0.00 | 1.02 | 0.00 | 0.55 | 8.97 | 352.61 | 21.86 | 294.94 | 0.4073 | 754.0 | 637.7 | |
| 0.00 | 0.94 | 0.00 | 0.50 | 8.19 | 352.02 | 21.26 | 293.70 | 0.3937 | 874.0 | 746.9 | |
| 0.00 | 0.94 | 0.00 | 0.50 | 8.13 | 351.70 | 20.94 | 293.87 | 0.3886 | 853.0 | 630.7 | |
| 0.00 | 1.02 | 0.00 | 0.55 | 10.86 | 351.59 | 20.83 | 300.22 | 0.4059 | 644.0 | 535.2 | |
| 0.00 | 0.85 | 0.00 | 0.45 | 7.05 | 350.34 | 19.59 | 292.53 | 0.3618 | 786.0 | 602.5 | |
| 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. | |