SDO HMI 2014-04-08 19:00:33 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 | 8.89 | 0.00 | 5.46 | -17.95 | 306.61 | -34.52 | 112.82 | 0.5847 | 443.5 | 388.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-08 19:00:33 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 | 0.35 | 0.00 | 0.20 | -14.76 | 312.53 | -28.60 | 109.42 | 0.4929 | 691.0 | 546.2 | |
| 0.00 | 2.73 | 0.00 | 1.62 | -18.08 | 309.31 | -31.83 | 113.97 | 0.5508 | 680.0 | 620.0 | |
| 0.00 | 1.41 | 0.00 | 0.84 | -18.29 | 309.15 | -31.98 | 114.26 | 0.5538 | 782.0 | 680.2 | |
| 0.00 | 2.11 | 0.00 | 1.26 | -18.09 | 308.93 | -32.20 | 113.80 | 0.5558 | 412.0 | 447.7 | |
| 0.00 | 0.88 | 0.00 | 0.55 | -20.61 | 305.88 | -35.26 | 116.47 | 0.6058 | 678.0 | 572.2 | |
| 0.00 | 1.41 | 0.00 | 0.99 | -16.41 | 296.32 | -44.82 | 107.15 | 0.7100 | -582.0 | -444.8 | |
| 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. | |