SDO HMI 2014-09-22 16:00:34 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 |
| 4.16 | 13.99 | 2.19 | 7.40 | 15.79 | 275.83 | -18.89 | 62.99 | 0.3511 | -56.9 | -173.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-22 16:00:34 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 |
| 3.19 | 10.18 | 1.68 | 5.37 | 15.92 | 276.38 | -18.34 | 62.07 | 0.3440 | -1027.4 | -822.6 | |
| 0.97 | -1.00 | 0.51 | -1.00 | 15.86 | 276.22 | -18.50 | 62.43 | 0.3458 | -828.2 | 999999 | |
| 0.00 | 2.57 | 0.00 | 1.37 | 15.58 | 274.52 | -20.20 | 64.90 | 0.3688 | 997.0 | 832.4 | |
| 0.00 | 1.24 | 0.00 | 0.66 | 15.27 | 274.42 | -20.30 | 65.79 | 0.3685 | 913.0 | 864.9 | |
| 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. | |