SDO HMI 2014-03-28 15:00:31 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 |
| 0.96 | 10.52 | 0.68 | 7.35 | 17.92 | 90.35 | -38.12 | 56.22 | 0.7092 | -501.4 | -481.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-28 15:00:31 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 | 0.88 | 0.00 | 0.60 | 17.87 | 92.14 | -36.33 | 55.03 | 0.6905 | -636.0 | -558.0 | |
| 0.00 | 0.79 | 0.00 | 0.55 | 18.59 | 90.50 | -37.98 | 55.30 | 0.7118 | -426.0 | -376.3 | |
| 0.00 | 1.58 | 0.00 | 1.10 | 18.26 | 90.50 | -37.97 | 55.69 | 0.7097 | -628.0 | -519.2 | |
| 0.96 | 4.38 | 0.68 | 3.07 | 17.95 | 90.22 | -38.25 | 56.26 | 0.7107 | -771.3 | -578.2 | |
| 0.00 | 1.49 | 0.00 | 1.05 | 18.34 | 89.92 | -38.56 | 55.99 | 0.7161 | -405.0 | -372.9 | |
| 0.00 | 0.44 | 0.00 | 0.31 | 18.11 | 89.86 | -38.62 | 56.30 | 0.7153 | -372.0 | -344.0 | |
| 0.00 | 0.96 | 0.00 | 0.67 | 15.93 | 89.87 | -38.61 | 59.00 | 0.7023 | -358.0 | -326.4 | |
| 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. | |