SDO HMI 2014-07-30 06:00:40 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 |
| 12.86 | 41.42 | 12.81 | 41.99 | -18.54 | 237.09 | -56.61 | 114.93 | 0.8746 | -118.2 | -310.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-07-30 06:00:40 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 |
| 2.72 | 4.53 | 2.54 | 4.23 | -18.00 | 240.08 | -53.62 | 115.37 | 0.8495 | 605.6 | 410.7 | |
| 3.35 | 5.26 | 3.20 | 5.01 | -18.33 | 239.32 | -54.38 | 115.46 | 0.8566 | 514.1 | 325.2 | |
| 0.00 | 1.00 | 0.00 | 0.97 | -18.73 | 238.52 | -55.18 | 115.61 | 0.8642 | 138.0 | 68.1 | |
| 0.00 | 0.91 | 0.00 | 0.90 | -18.63 | 238.05 | -55.65 | 115.34 | 0.8676 | -292.0 | -254.7 | |
| 0.00 | 1.36 | 0.00 | 1.39 | -18.85 | 237.01 | -56.69 | 115.23 | 0.8763 | -546.0 | -512.7 | |
| 4.89 | 12.96 | 5.08 | 13.52 | -18.84 | 236.36 | -57.34 | 115.00 | 0.8811 | -674.1 | -367.4 | |
| 0.00 | 1.99 | 0.00 | 2.09 | -18.78 | 235.97 | -57.73 | 114.81 | 0.8838 | -259.0 | -169.9 | |
| 1.90 | 13.41 | 1.99 | 13.88 | -18.40 | 236.11 | -57.59 | 114.45 | 0.8819 | -395.3 | -507.2 | |
| 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. | |