SDO HMI 2014-09-23 09:00:34 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 | 7.52 | 0.00 | 4.22 | 16.14 | 258.39 | -26.98 | 68.55 | 0.4703 | 718.4 | 583.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-23 09:00:34 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 | 2.12 | 0.00 | 1.19 | 16.90 | 258.92 | -26.45 | 66.67 | 0.4660 | 572.0 | 427.1 | |
| 0.00 | 1.15 | 0.00 | 0.64 | 15.05 | 258.66 | -26.71 | 70.66 | 0.4619 | 579.0 | 507.0 | |
| 0.00 | 2.39 | 0.00 | 1.34 | 16.03 | 258.10 | -27.27 | 68.93 | 0.4738 | 940.0 | 748.0 | |
| 0.00 | 0.62 | 0.00 | 0.35 | 15.84 | 258.13 | -27.24 | 69.29 | 0.4727 | 793.0 | 615.4 | |
| 0.00 | 1.24 | 0.00 | 0.70 | 16.20 | 257.90 | -27.47 | 68.69 | 0.4774 | 708.0 | 590.3 | |
| 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. | |