SDO HMI 2014-05-18 20:00:38 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 | 12.33 | 0.00 | 6.72 | -23.23 | 159.42 | -12.60 | 152.04 | 0.4135 | -760.0 | -601.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-18 20:00:38 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 | 0.45 | -13.51 | 169.77 | -2.25 | 168.92 | 0.1996 | -832.0 | -544.9 | |
| 0.00 | 1.44 | 0.00 | 0.76 | -22.22 | 164.72 | -7.31 | 160.98 | 0.3628 | -786.0 | -561.4 | |
| 0.00 | 1.08 | 0.00 | 0.59 | -25.57 | 163.91 | -8.12 | 162.17 | 0.4178 | -738.0 | -581.2 | |
| 0.00 | 1.44 | 0.00 | 0.77 | -21.22 | 160.02 | -12.01 | 149.22 | 0.3806 | -872.0 | -649.9 | |
| 0.00 | 2.79 | 0.00 | 1.50 | -21.41 | 159.70 | -12.32 | 148.85 | 0.3858 | -727.0 | -647.6 | |
| 0.00 | 0.72 | 0.00 | 0.38 | -19.68 | 159.61 | -12.41 | 146.01 | 0.3635 | -784.0 | -707.4 | |
| 0.00 | 1.08 | 0.00 | 0.62 | -29.40 | 156.13 | -15.90 | 152.45 | 0.5179 | -726.0 | -571.3 | |
| 0.00 | 1.08 | 0.00 | 0.62 | -26.77 | 153.83 | -18.20 | 146.21 | 0.5033 | -675.0 | -543.9 | |
| 0.00 | 1.17 | 0.00 | 0.67 | -26.97 | 153.51 | -18.52 | 146.01 | 0.5083 | -774.0 | -587.9 | |
| 0.00 | 0.63 | 0.00 | 0.36 | -25.58 | 151.67 | -20.35 | 141.76 | 0.5088 | -686.0 | -554.9 | |
| 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. | |