SDO HMI 2014-08-01 20:00:39 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 |
| 15.20 | 32.23 | 8.55 | 18.20 | -20.63 | 248.57 | -10.96 | 158.45 | 0.4796 | 632.4 | 342.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-08-01 20:00:39 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 | 1.27 | 0.00 | 0.69 | -17.13 | 251.28 | -8.25 | 160.58 | 0.4142 | -699.0 | -470.9 | |
| 0.00 | 1.27 | 0.00 | 0.70 | -18.53 | 251.18 | -8.35 | 161.49 | 0.4355 | 891.0 | 743.5 | |
| 0.00 | 1.09 | 0.00 | 0.61 | -20.45 | 251.01 | -8.52 | 162.55 | 0.4648 | 755.0 | 616.2 | |
| 0.00 | 1.18 | 0.00 | 0.64 | -17.41 | 250.65 | -8.87 | 159.48 | 0.4216 | 485.0 | 364.0 | |
| 15.20 | 23.16 | 8.55 | 13.02 | -20.45 | 249.00 | -10.53 | 158.79 | 0.4750 | 1029.9 | 589.2 | |
| 0.00 | 1.99 | 0.00 | 1.11 | -19.04 | 248.80 | -10.73 | 157.21 | 0.4560 | 743.0 | 608.7 | |
| 0.00 | 1.09 | 0.00 | 0.68 | -28.30 | 242.31 | -17.22 | 154.92 | 0.6171 | -457.0 | -420.1 | |
| 0.00 | 1.18 | 0.00 | 0.75 | -27.11 | 237.83 | -21.70 | 148.50 | 0.6323 | -690.0 | -697.2 | |
| 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. | |