SDO HMI 2011-10-25 13:59:00 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 |
| 0.43 | 7.22 | 0.31 | 5.04 | 14.83 | 241.84 | -44.50 | 73.96 | 0.7070 | 120.9 | 86.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-25 13:59:00 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 | 1.65 | 0.00 | 1.12 | 14.83 | 243.77 | -42.56 | 73.60 | 0.6839 | -619.0 | -507.2 | |
| 0.00 | 0.96 | 0.00 | 0.65 | 15.12 | 243.62 | -42.71 | 73.20 | 0.6864 | -611.0 | -513.0 | |
| 0.00 | 0.61 | 0.00 | 0.42 | 13.96 | 242.42 | -43.92 | 75.11 | 0.6988 | 465.0 | 511.1 | |
| 0.00 | 0.87 | 0.00 | 0.61 | 15.52 | 242.02 | -44.31 | 72.98 | 0.7063 | 609.0 | 474.0 | |
| 0.00 | 0.43 | 0.00 | 0.31 | 14.61 | 240.60 | -45.73 | 74.52 | 0.7214 | -431.0 | -366.2 | |
| 0.00 | 1.48 | 0.00 | 1.06 | 14.91 | 240.16 | -46.18 | 74.17 | 0.7270 | 630.0 | 580.6 | |
| 0.43 | 1.22 | 0.31 | 0.87 | 14.54 | 240.08 | -46.25 | 74.69 | 0.7273 | 641.6 | 541.0 | |
| 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. | |