SDO HMI 2014-10-17 05:51:31 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 |
| 47.60 | 297.73 | 38.80 | 242.98 | -21.18 | 16.46 | 46.04 | 237.73 | 0.7962 | 941.2 | 241.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-17 05:51:31 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 |
| 23.76 | 290.57 | 19.49 | 237.39 | -21.23 | 16.81 | 46.39 | 237.84 | 0.7995 | 942.5 | 242.1 | |
| 23.23 | -1.00 | 18.83 | -1.00 | -21.09 | 16.24 | 45.82 | 237.72 | 0.7938 | 1261.2 | 999999 | |
| 0.00 | 1.40 | 0.00 | 1.13 | -22.96 | 14.94 | 44.52 | 234.91 | 0.7912 | 565.0 | 460.9 | |
| 0.61 | 1.66 | 0.48 | 1.31 | -22.01 | 14.42 | 44.00 | 235.70 | 0.7819 | 619.1 | 628.3 | |
| 0.00 | 0.87 | 0.00 | 0.70 | -23.12 | 14.87 | 44.45 | 234.69 | 0.7915 | 299.0 | 325.6 | |
| 0.00 | 1.22 | 0.00 | 0.96 | -21.53 | 14.19 | 43.77 | 236.12 | 0.7774 | 444.0 | 382.5 | |
| 0.00 | 0.26 | 0.00 | 0.21 | -22.30 | 13.73 | 43.30 | 234.98 | 0.7771 | -473.0 | -456.3 | |
| 0.00 | 1.14 | 0.00 | 0.83 | -19.67 | 10.84 | 40.41 | 236.35 | 0.7357 | -386.0 | -427.3 | |
| 0.00 | 0.61 | 0.00 | 0.45 | -20.59 | 10.33 | 39.90 | 234.94 | 0.7360 | -375.0 | -359.4 | |
| 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. | |