SDO HMI 2014-12-09 01:00:25 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 | 8.79 | 0.00 | 6.09 | -14.90 | 36.74 | 42.39 | 248.49 | 0.7025 | -140.2 | -19.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-09 01:00:25 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 | 2.22 | 0.00 | 1.60 | -13.12 | 39.53 | 45.18 | 251.92 | 0.7291 | 490.0 | 485.2 | |
| 0.00 | 1.02 | 0.00 | 0.73 | -13.60 | 38.66 | 44.31 | 251.00 | 0.7204 | 618.0 | 488.3 | |
| 0.00 | 0.60 | 0.00 | 0.41 | -16.23 | 36.37 | 42.02 | 246.60 | 0.7027 | -632.0 | -515.4 | |
| 0.00 | 1.45 | 0.00 | 0.99 | -15.12 | 35.97 | 41.62 | 247.97 | 0.6941 | 173.0 | 231.1 | |
| 0.00 | 2.73 | 0.00 | 1.86 | -16.14 | 35.19 | 40.84 | 246.25 | 0.6888 | -731.0 | -518.9 | |
| 0.00 | 0.77 | 0.00 | 0.50 | -16.35 | 32.60 | 38.25 | 244.76 | 0.6592 | -759.0 | -598.3 | |
| 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. | |