SDO HMI 2011-08-30 17:59:08 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 |
| 32.59 | 176.98 | 16.48 | 89.53 | 18.20 | 299.54 | -3.66 | 17.43 | 0.2023 | -1082.0 | -416.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 17:59:08 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 | 2.06 | 0.00 | 1.03 | 14.11 | 302.17 | -1.03 | 8.22 | 0.1230 | -1003.0 | -794.3 | |
| 32.59 | 164.72 | 16.48 | 83.32 | 18.24 | 299.69 | -3.51 | 16.81 | 0.2020 | -1253.9 | -409.3 | |
| 0.00 | 1.43 | 0.00 | 0.72 | 17.48 | 297.51 | -5.69 | 27.75 | 0.2041 | -907.0 | -699.0 | |
| 0.00 | 3.67 | 0.00 | 1.86 | 18.40 | 297.13 | -6.07 | 27.17 | 0.2209 | -992.0 | -885.4 | |
| 0.00 | 1.52 | 0.00 | 0.77 | 18.49 | 296.84 | -6.36 | 28.06 | 0.2245 | -798.0 | -680.3 | |
| 0.00 | 1.25 | 0.00 | 0.64 | 18.36 | 296.59 | -6.62 | 29.27 | 0.2247 | -817.0 | -643.2 | |
| 0.00 | 2.33 | 0.00 | 1.19 | 18.43 | 295.17 | -8.03 | 33.99 | 0.2383 | 858.0 | 688.8 | |
| 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. | |