SDO HMI 2014-03-30 18:00:31 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 | 12.53 | 0.00 | 6.55 | -12.50 | 82.40 | -18.04 | 109.53 | 0.3223 | 361.9 | 338.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 18:00:31 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 | 1.23 | 0.00 | 0.63 | -12.19 | 84.97 | -15.47 | 111.21 | 0.2809 | 940.0 | 758.4 | |
| 0.00 | 1.23 | 0.00 | 0.63 | -11.63 | 84.34 | -16.10 | 108.67 | 0.2881 | 840.0 | 685.3 | |
| 0.00 | 1.49 | 0.00 | 0.77 | -11.65 | 84.11 | -16.33 | 108.53 | 0.2917 | 1033.0 | 810.9 | |
| 0.00 | 1.75 | 0.00 | 0.91 | -11.86 | 83.91 | -16.53 | 109.01 | 0.2959 | 791.0 | 696.5 | |
| 0.00 | 1.14 | 0.00 | 0.59 | -11.55 | 83.74 | -16.70 | 107.86 | 0.2972 | 916.0 | 766.5 | |
| 0.00 | 1.05 | 0.00 | 0.55 | -11.41 | 83.23 | -17.21 | 107.00 | 0.3046 | 752.0 | 629.3 | |
| 0.00 | 1.14 | 0.00 | 0.60 | -11.54 | 81.81 | -18.63 | 106.34 | 0.3276 | 760.0 | 617.5 | |
| 0.00 | 0.96 | 0.00 | 0.51 | -14.26 | 79.56 | -20.88 | 112.10 | 0.3745 | -858.0 | -634.2 | |
| 0.00 | 1.14 | 0.00 | 0.61 | -14.12 | 79.04 | -21.40 | 111.33 | 0.3815 | -757.0 | -475.8 | |
| 0.00 | 1.40 | 0.00 | 0.75 | -14.97 | 78.49 | -21.95 | 113.00 | 0.3940 | -798.0 | -667.4 | |
| 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. | |