SDO HMI 2014-12-04 05:00:25 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 | 5.72 | 0.00 | 3.87 | -22.81 | 94.81 | 36.77 | 234.56 | 0.6805 | 18.8 | 42.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-04 05:00:25 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 | 1.71 | 0.00 | 1.11 | -18.76 | 94.03 | 35.99 | 239.47 | 0.6483 | -569.0 | -530.7 | |
| 0.00 | 0.94 | 0.00 | 0.65 | -24.74 | 95.58 | 37.53 | 232.49 | 0.6999 | 585.0 | 457.9 | |
| 0.00 | 2.05 | 0.00 | 1.42 | -24.91 | 95.47 | 37.43 | 232.22 | 0.6998 | 681.0 | 571.3 | |
| 0.00 | 1.02 | 0.00 | 0.69 | -23.20 | 93.98 | 35.93 | 233.41 | 0.6741 | -622.0 | -515.0 | |
| 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. | |