SDO HMI 2014-04-23 10:00:35 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 | 8.97 | 0.00 | 4.92 | -19.01 | 126.56 | -21.47 | 125.91 | 0.4288 | 513.7 | 273.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-23 10:00:35 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 | 1.78 | 0.00 | 0.96 | -19.79 | 129.75 | -18.27 | 131.51 | 0.3956 | 732.0 | 535.3 | |
| 0.00 | 1.24 | 0.00 | 0.68 | -19.05 | 126.69 | -21.34 | 126.01 | 0.4270 | 945.0 | 740.5 | |
| 0.00 | 0.89 | 0.00 | 0.49 | -19.72 | 126.28 | -21.74 | 126.87 | 0.4377 | 838.0 | 710.0 | |
| 0.00 | 0.62 | 0.00 | 0.34 | -20.34 | 125.91 | -22.11 | 127.63 | 0.4475 | 738.0 | 618.0 | |
| 0.00 | 2.22 | 0.00 | 1.22 | -18.23 | 126.21 | -21.81 | 123.80 | 0.4264 | 779.0 | 569.4 | |
| 0.00 | 2.22 | 0.00 | 1.23 | -18.52 | 124.62 | -23.40 | 122.73 | 0.4495 | -950.0 | -749.6 | |
| 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. | |