SDO HMI 2014-03-28 10:00:31 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 |
| 0.00 | 6.49 | 0.00 | 4.73 | 17.77 | 90.21 | -41.01 | 58.21 | 0.7374 | -516.0 | -438.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-28 10:00:31 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 | 0.70 | 0.00 | 0.50 | 17.84 | 92.25 | -38.97 | 56.86 | 0.7173 | -651.0 | -539.8 | |
| 0.00 | 1.05 | 0.00 | 0.77 | 18.16 | 90.35 | -40.87 | 57.66 | 0.7382 | -544.0 | -481.8 | |
| 0.00 | 0.53 | 0.00 | 0.38 | 17.91 | 90.21 | -41.00 | 58.05 | 0.7382 | -574.0 | -544.7 | |
| 0.00 | 1.49 | 0.00 | 1.08 | 16.91 | 90.48 | -40.73 | 59.10 | 0.7300 | -456.0 | -395.4 | |
| 0.00 | 0.70 | 0.00 | 0.50 | 16.34 | 90.34 | -40.88 | 59.88 | 0.7283 | -460.0 | -392.0 | |
| 0.00 | 1.14 | 0.00 | 0.84 | 18.41 | 89.65 | -41.57 | 57.78 | 0.7465 | -432.0 | -364.5 | |
| 0.00 | 0.88 | 0.00 | 0.66 | 18.89 | 88.65 | -42.57 | 57.80 | 0.7587 | -495.0 | -448.6 | |
| 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. | |