SDO HMI 2014-12-01 23:00:25 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 | 5.22 | 0.00 | 2.84 | -23.36 | 93.48 | 5.78 | 192.65 | 0.4216 | -92.4 | -114.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-12-01 23:00:25 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 | 0.85 | 0.00 | 0.47 | -24.38 | 95.06 | 7.36 | 195.34 | 0.4430 | 708.0 | 583.5 | |
| 0.00 | 1.20 | 0.00 | 0.66 | -25.10 | 94.61 | 6.91 | 194.01 | 0.4520 | 698.0 | 596.1 | |
| 0.00 | 1.20 | 0.00 | 0.65 | -23.43 | 94.16 | 6.46 | 194.13 | 0.4250 | -862.0 | -710.5 | |
| 0.00 | 1.37 | 0.00 | 0.73 | -20.41 | 92.10 | 4.40 | 191.24 | 0.3705 | -819.0 | -611.8 | |
| 0.00 | 0.60 | 0.00 | 0.33 | -24.80 | 90.70 | 3.00 | 186.28 | 0.4364 | -187.0 | -257.6 | |
| 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. | |