SDO HMI 2011-08-30 12:59:08 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 | 10.48 | 0.00 | 5.90 | 19.33 | 332.00 | 26.04 | 298.23 | 0.4718 | 1.2 | -18.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-30 12:59:08 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 | 2.96 | 0.00 | 1.73 | 22.88 | 335.20 | 29.24 | 302.41 | 0.5351 | 624.0 | 458.8 | |
| 0.00 | 1.79 | 0.00 | 1.01 | 17.53 | 333.05 | 27.08 | 293.99 | 0.4771 | -687.0 | -530.5 | |
| 0.00 | 2.33 | 0.00 | 1.31 | 18.73 | 332.53 | 26.56 | 296.72 | 0.4761 | -860.0 | -637.6 | |
| 0.00 | 1.16 | 0.00 | 0.65 | 17.41 | 331.12 | 25.15 | 295.04 | 0.4495 | -617.0 | -493.2 | |
| 0.00 | 1.08 | 0.00 | 0.58 | 17.74 | 326.71 | 20.74 | 299.59 | 0.3896 | 724.0 | 584.3 | |
| 0.00 | 1.16 | 0.00 | 0.62 | 17.15 | 326.13 | 20.17 | 298.78 | 0.3775 | 823.0 | 724.1 | |
| 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. | |