SDO HMI 2014-05-18 19:00:38 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 | 9.99 | 0.00 | 5.77 | -24.71 | 153.50 | -19.08 | 145.79 | 0.4904 | -654.0 | -566.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-18 19:00:38 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 | 0.72 | 0.00 | 0.37 | -15.32 | 166.59 | -5.99 | 156.00 | 0.2486 | -710.0 | -566.6 | |
| 0.00 | 2.25 | 0.00 | 1.20 | -22.25 | 164.67 | -7.90 | 159.59 | 0.3665 | -809.0 | -667.8 | |
| 0.00 | 1.26 | 0.00 | 0.68 | -21.47 | 159.72 | -12.86 | 147.86 | 0.3911 | -730.0 | -623.0 | |
| 0.00 | 1.26 | 0.00 | 0.73 | -29.43 | 156.10 | -16.48 | 151.65 | 0.5223 | -581.0 | -536.6 | |
| 0.00 | 0.81 | 0.00 | 0.47 | -26.93 | 153.53 | -19.05 | 145.24 | 0.5123 | -740.0 | -623.1 | |
| 0.00 | 2.07 | 0.00 | 1.19 | -25.54 | 151.77 | -20.81 | 141.11 | 0.5126 | -729.0 | -575.7 | |
| 0.00 | 0.99 | 0.00 | 0.68 | -26.14 | 134.49 | -38.09 | 126.66 | 0.6927 | -370.0 | -371.0 | |
| 0.00 | 0.63 | 0.00 | 0.45 | -29.51 | 132.59 | -39.99 | 129.79 | 0.7301 | -563.0 | -468.4 | |
| 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. | |