SDO HMI 2014-09-23 19:00:34 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 |
| 0.00 | 7.97 | 0.00 | 4.28 | 16.18 | 258.61 | -21.25 | 64.29 | 0.3876 | 571.4 | 452.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-23 19:00:34 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 | 1.24 | 0.00 | 0.65 | 15.75 | 261.68 | -18.18 | 62.29 | 0.3407 | -707.0 | -549.9 | |
| 0.00 | 1.33 | 0.00 | 0.71 | 16.37 | 259.56 | -20.30 | 62.97 | 0.3753 | 823.0 | 646.1 | |
| 0.00 | 1.33 | 0.00 | 0.71 | 15.38 | 259.23 | -20.63 | 65.74 | 0.3742 | 879.0 | 651.1 | |
| 0.00 | 1.06 | 0.00 | 0.57 | 15.12 | 258.83 | -21.04 | 66.75 | 0.3788 | 620.0 | 464.8 | |
| 0.00 | 0.80 | 0.00 | 0.43 | 17.27 | 258.32 | -21.55 | 62.04 | 0.3988 | 667.0 | 586.9 | |
| 0.00 | 1.06 | 0.00 | 0.57 | 15.79 | 258.08 | -21.78 | 65.73 | 0.3933 | 986.0 | 801.2 | |
| 0.00 | 1.15 | 0.00 | 0.64 | 17.82 | 254.25 | -25.62 | 64.22 | 0.4590 | 732.0 | 629.9 | |
| 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. | |