SDO HMI 2014-05-20 01:00:38 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 |
| 6.66 | 21.95 | 3.73 | 12.23 | 9.88 | 180.44 | 24.42 | 296.88 | 0.4581 | -29.8 | -147.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-05-20 01:00:38 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 | 1.62 | 0.00 | 0.94 | 12.15 | 184.25 | 28.23 | 297.64 | 0.5240 | 523.0 | 431.2 | |
| 2.52 | 13.22 | 1.41 | 7.40 | 9.09 | 181.46 | 25.44 | 294.22 | 0.4670 | -930.2 | -686.3 | |
| 4.14 | -2.00 | 2.32 | -2.00 | 9.36 | 181.38 | 25.36 | 294.83 | 0.4675 | -1004.4 | 999999 | |
| 0.00 | 1.80 | 0.00 | 1.01 | 9.42 | 181.08 | 25.06 | 295.20 | 0.4636 | -689.0 | -721.8 | |
| 0.00 | 0.72 | 0.00 | 0.40 | 11.81 | 178.61 | 22.59 | 302.33 | 0.4468 | 629.0 | 463.1 | |
| 0.00 | 1.17 | 0.00 | 0.64 | 11.27 | 177.73 | 21.71 | 302.26 | 0.4307 | 712.0 | 507.8 | |
| 0.00 | 0.99 | 0.00 | 0.53 | 10.00 | 176.18 | 20.16 | 301.48 | 0.3996 | 615.0 | 520.2 | |
| 0.00 | 1.26 | 0.00 | 0.68 | 9.75 | 175.94 | 19.91 | 301.23 | 0.3942 | 808.0 | 627.4 | |
| 0.00 | 1.17 | 0.00 | 0.63 | 11.92 | 174.61 | 18.59 | 307.65 | 0.3956 | 724.0 | 588.8 | |
| 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. | |