SDO HMI 2014-04-27 15:00:35 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 |
| 0.00 | 7.58 | 0.00 | 5.67 | -19.79 | 139.78 | 47.34 | 247.40 | 0.7522 | -236.2 | -48.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-27 15:00:35 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 |
| 0.00 | 1.25 | 0.00 | 0.96 | -13.70 | 142.36 | 49.93 | 255.89 | 0.7688 | 539.0 | 488.3 | |
| 0.00 | 2.76 | 0.00 | 2.13 | -20.96 | 141.24 | 48.80 | 246.33 | 0.7695 | 112.0 | 179.6 | |
| 0.00 | 1.07 | 0.00 | 0.78 | -20.98 | 137.95 | 45.52 | 245.38 | 0.7351 | -579.0 | -458.6 | |
| 0.00 | 1.07 | 0.00 | 0.78 | -21.21 | 137.81 | 45.38 | 245.03 | 0.7343 | -420.0 | -365.2 | |
| 0.00 | 0.45 | 0.00 | 0.32 | -20.31 | 137.29 | 44.85 | 246.06 | 0.7260 | -566.0 | -528.4 | |
| 0.00 | 0.98 | 0.00 | 0.70 | -21.43 | 137.16 | 44.73 | 244.52 | 0.7280 | -503.0 | -447.0 | |
| 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. | |