SDO HMI 2011-08-25 11:59:09 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 | 14.21 | 0.00 | 7.43 | 18.15 | 357.60 | -14.98 | 49.97 | 0.3177 | -255.6 | -194.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-25 11:59:09 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 | 1.89 | 0.00 | 0.97 | 17.32 | 2.08 | -10.49 | 43.89 | 0.2519 | -900.0 | -708.3 | |
| 0.00 | 1.08 | 0.00 | 0.55 | 18.18 | 1.87 | -10.71 | 42.07 | 0.2646 | -695.0 | -532.2 | |
| 0.00 | 1.44 | 0.00 | 0.74 | 17.44 | 0.36 | -12.22 | 47.75 | 0.2739 | -763.0 | -588.3 | |
| 0.00 | 1.35 | 0.00 | 0.70 | 19.41 | 359.99 | -12.59 | 43.42 | 0.3004 | -770.0 | -601.4 | |
| 0.00 | 2.42 | 0.00 | 1.25 | 17.92 | 359.77 | -12.80 | 47.71 | 0.2863 | -962.0 | -764.6 | |
| 0.00 | 1.26 | 0.00 | 0.65 | 18.75 | 359.68 | -12.90 | 45.72 | 0.2965 | -786.0 | -670.1 | |
| 0.00 | 1.71 | 0.00 | 0.90 | 17.66 | 354.48 | -18.10 | 57.27 | 0.3534 | 911.0 | 690.3 | |
| 0.00 | 1.80 | 0.00 | 0.96 | 17.68 | 353.50 | -19.08 | 58.43 | 0.3670 | 951.0 | 762.6 | |
| 0.00 | 1.26 | 0.00 | 0.71 | 19.86 | 346.67 | -25.90 | 60.37 | 0.4746 | 714.0 | 613.2 | |
| 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. | |