SDO HMI 2011-04-26 01:59:06 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 |
| 20.01 | 37.36 | 11.07 | 20.71 | 20.72 | 186.71 | 8.04 | 343.07 | 0.4503 | 237.9 | -60.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-04-26 01:59:06 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 | 1.69 | 0.00 | 0.95 | 21.12 | 189.95 | 11.28 | 337.21 | 0.4727 | -816.0 | -667.3 | |
| 0.00 | 0.89 | 0.00 | 0.50 | 20.95 | 189.87 | 11.20 | 337.20 | 0.4699 | -869.0 | -633.2 | |
| 1.60 | 1.87 | 0.89 | 1.04 | 20.56 | 188.50 | 9.82 | 339.43 | 0.4565 | -799.1 | -778.0 | |
| 0.00 | 1.42 | 0.00 | 0.79 | 20.93 | 188.49 | 9.82 | 339.74 | 0.4617 | -767.0 | -626.9 | |
| 0.00 | 0.71 | 0.00 | 0.40 | 21.36 | 188.02 | 9.35 | 340.95 | 0.4655 | -655.0 | -442.5 | |
| 1.33 | 4.36 | 0.74 | 2.42 | 20.62 | 187.88 | 9.21 | 340.66 | 0.4540 | -821.9 | -540.7 | |
| 0.00 | 1.25 | 0.00 | 0.69 | 19.92 | 187.77 | 9.10 | 340.31 | 0.4432 | -852.0 | -701.5 | |
| 17.08 | 23.66 | 9.44 | 13.08 | 20.69 | 185.86 | 7.19 | 344.71 | 0.4458 | 918.5 | 583.4 | |
| 0.00 | 1.51 | 0.00 | 0.84 | 21.26 | 185.66 | 6.99 | 345.46 | 0.4535 | 669.0 | 502.4 | |
| 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. | |