SDO HMI 2014-01-18 03:00:24 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 |
| 38.36 | 211.97 | 28.47 | 157.42 | -15.99 | 11.72 | 47.76 | 252.84 | 0.7472 | 733.4 | 315.5 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-01-18 03:00:24 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 |
| 19.22 | 129.12 | 14.46 | 97.17 | -16.48 | 12.38 | 48.42 | 252.31 | 0.7553 | 859.7 | 295.3 | |
| 0.00 | 0.68 | 0.00 | 0.50 | -14.62 | 11.71 | 47.75 | 254.67 | 0.7451 | 122.0 | 204.4 | |
| 2.64 | -1.00 | 1.97 | -1.00 | -16.45 | 12.00 | 48.04 | 252.28 | 0.7511 | 1096.1 | 999999 | |
| 16.50 | 74.93 | 12.04 | 54.66 | -14.90 | 10.94 | 46.98 | 254.16 | 0.7367 | 973.4 | 389.8 | |
| 0.00 | 0.77 | 0.00 | 0.56 | -19.24 | 10.68 | 46.72 | 248.29 | 0.7422 | 559.0 | 502.2 | |
| 0.00 | 0.85 | 0.00 | 0.62 | -19.60 | 10.40 | 46.44 | 247.75 | 0.7400 | 631.0 | 550.8 | |
| 0.00 | 1.79 | 0.00 | 1.31 | -19.97 | 10.41 | 46.45 | 247.26 | 0.7409 | 387.0 | 420.7 | |
| 0.00 | 0.43 | 0.00 | 0.31 | -19.92 | 10.20 | 46.24 | 247.27 | 0.7386 | 705.0 | 624.0 | |
| 0.00 | 1.19 | 0.00 | 0.81 | -15.14 | 6.80 | 42.84 | 253.02 | 0.6886 | -568.0 | -494.0 | |
| 0.00 | 1.19 | 0.00 | 0.80 | -18.14 | 5.32 | 41.36 | 248.31 | 0.6781 | -542.0 | -439.1 | |
| 0.00 | 1.02 | 0.00 | 0.68 | -18.15 | 4.95 | 40.99 | 248.16 | 0.6738 | -856.0 | -729.6 | |
| 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. | |