SDO HMI 2014-03-15 12:00:29 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 |
| 2.43 | 17.39 | 1.36 | 9.72 | 12.61 | 282.16 | -19.36 | 44.30 | 0.4650 | 312.7 | 140.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-15 12:00:29 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 |
| 1.56 | 5.13 | 0.87 | 2.84 | 12.35 | 283.56 | -17.96 | 42.58 | 0.4472 | -936.9 | -758.6 | |
| 0.00 | 2.35 | 0.00 | 1.31 | 12.86 | 282.75 | -18.78 | 43.06 | 0.4615 | -875.0 | -596.0 | |
| 0.00 | 1.65 | 0.00 | 0.92 | 12.14 | 281.84 | -19.69 | 45.54 | 0.4635 | 739.0 | 648.4 | |
| 0.00 | 2.61 | 0.00 | 1.46 | 12.22 | 281.60 | -19.92 | 45.76 | 0.4668 | 686.0 | 652.3 | |
| 0.87 | 3.82 | 0.49 | 2.16 | 13.13 | 281.04 | -20.49 | 45.16 | 0.4827 | 852.1 | 625.3 | |
| 0.00 | 1.83 | 0.00 | 1.03 | 12.85 | 281.00 | -20.53 | 45.65 | 0.4801 | 984.0 | 832.4 | |
| 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. | |