SDO HMI 2011-08-11 08:59:10 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 |
| 0.00 | 14.63 | 0.00 | 8.16 | 19.65 | 224.16 | 24.89 | 301.00 | 0.4644 | -519.7 | -412.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-11 08:59:10 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 | 0.90 | 0.00 | 0.51 | 20.27 | 225.28 | 26.02 | 301.27 | 0.4834 | -650.0 | -489.5 | |
| 0.00 | 1.99 | 0.00 | 1.13 | 22.25 | 225.48 | 26.22 | 304.72 | 0.4994 | -787.0 | -650.2 | |
| 0.00 | 2.80 | 0.00 | 1.57 | 19.57 | 224.80 | 25.54 | 300.33 | 0.4725 | -804.0 | -533.9 | |
| 0.00 | 4.15 | 0.00 | 2.33 | 19.86 | 224.71 | 25.44 | 300.96 | 0.4732 | -610.0 | -577.8 | |
| 0.00 | 1.17 | 0.00 | 0.65 | 18.31 | 224.42 | 25.15 | 298.15 | 0.4596 | -888.0 | -771.6 | |
| 0.00 | 1.54 | 0.00 | 0.85 | 18.53 | 223.54 | 24.27 | 299.34 | 0.4489 | -829.0 | -671.7 | |
| 0.00 | 2.08 | 0.00 | 1.12 | 18.03 | 220.58 | 21.32 | 301.09 | 0.4054 | 930.0 | 781.0 | |
| 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. | |