SDO HMI 2014-09-18 03:00:35 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 |
| 36.05 | 171.59 | 41.75 | 201.40 | 7.83 | 289.09 | -65.56 | 84.67 | 0.9072 | -580.0 | -141.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-18 03:00:35 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 |
| 13.23 | 90.99 | 15.17 | 105.19 | 10.13 | 289.49 | -65.16 | 82.16 | 0.9035 | -864.0 | -183.0 | |
| 14.65 | 56.72 | 16.28 | 62.92 | 5.21 | 290.74 | -63.91 | 87.73 | 0.8970 | -713.2 | -190.5 | |
| 4.70 | -1.00 | 5.51 | -1.00 | 10.07 | 288.92 | -65.73 | 82.20 | 0.9077 | -237.3 | 999999 | |
| 0.00 | 1.95 | 0.00 | 2.20 | 4.69 | 290.41 | -64.24 | 88.27 | 0.8999 | -52.0 | -74.4 | |
| 0.00 | 2.04 | 0.00 | 2.41 | 4.34 | 289.17 | -65.48 | 88.52 | 0.9093 | -365.0 | -227.2 | |
| 1.07 | 2.31 | 1.30 | 2.82 | 4.83 | 288.19 | -66.47 | 87.87 | 0.9159 | 350.2 | 407.8 | |
| 1.07 | 10.30 | 1.55 | 15.20 | 6.06 | 284.03 | -70.62 | 86.13 | 0.9417 | 171.4 | 103.3 | |
| 1.33 | 7.28 | 1.94 | 10.66 | 5.53 | 284.00 | -70.65 | 86.68 | 0.9422 | 177.9 | 59.7 | |
| 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. | |