SDO HMI 2014-01-15 17:00:24 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 | 7.73 | 0.00 | 4.39 | -6.97 | 25.10 | 29.30 | 263.95 | 0.4905 | 753.8 | 657.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-15 17:00:24 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 | 1.36 | 0.00 | 0.78 | -7.50 | 26.21 | 30.41 | 263.01 | 0.5076 | 695.0 | 555.2 | |
| 0.00 | 3.65 | 0.00 | 2.07 | -6.72 | 24.95 | 29.15 | 264.44 | 0.4881 | 566.0 | 647.6 | |
| 0.00 | 1.70 | 0.00 | 0.96 | -7.02 | 24.87 | 29.07 | 263.82 | 0.4871 | 853.0 | 703.9 | |
| 0.00 | 1.02 | 0.00 | 0.58 | -7.06 | 24.53 | 28.73 | 263.69 | 0.4820 | 901.0 | 751.9 | |
| 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. | |