SDO HMI 2011-08-31 00:59:08 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 |
| 43.97 | 276.00 | 22.12 | 138.93 | 13.84 | 291.59 | -7.75 | 48.08 | 0.1766 | -717.5 | -343.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-08-31 00:59:08 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 |
| 43.97 | 263.73 | 22.12 | 132.69 | 13.84 | 291.74 | -7.60 | 47.66 | 0.1746 | -1353.3 | -402.7 | |
| 0.00 | 1.25 | 0.00 | 0.63 | 12.58 | 289.55 | -9.79 | 59.97 | 0.1925 | 894.0 | 744.2 | |
| 0.00 | 0.63 | 0.00 | 0.32 | 12.55 | 289.30 | -10.04 | 60.72 | 0.1960 | 757.0 | 601.9 | |
| 0.00 | 0.81 | 0.00 | 0.41 | 13.19 | 289.24 | -10.10 | 58.04 | 0.2021 | 873.0 | 748.9 | |
| 0.00 | 0.99 | 0.00 | 0.50 | 14.67 | 289.02 | -10.32 | 52.63 | 0.2191 | 823.0 | 648.9 | |
| 0.00 | 3.31 | 0.00 | 1.68 | 14.00 | 288.99 | -10.35 | 55.30 | 0.2131 | 744.0 | 652.5 | |
| 0.00 | 1.52 | 0.00 | 0.77 | 11.39 | 288.94 | -10.40 | 66.94 | 0.1933 | 913.0 | 711.9 | |
| 0.00 | 1.43 | 0.00 | 0.73 | 14.13 | 288.06 | -11.28 | 56.96 | 0.2273 | 954.0 | 792.2 | |
| 0.00 | 1.61 | 0.00 | 0.83 | 16.76 | 286.65 | -12.69 | 51.16 | 0.2712 | 952.0 | 786.7 | |
| 0.00 | 0.72 | 0.00 | 0.37 | 15.76 | 286.04 | -13.30 | 55.45 | 0.2700 | 697.0 | 518.1 | |
| 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. | |