SDO HMI 2014-03-30 18:00:31 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 |
| 4.65 | 18.41 | 5.79 | 22.67 | -25.32 | 167.44 | 67.00 | 245.21 | 0.9180 | 121.0 | 29.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-30 18:00:31 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 |
| 0.53 | 2.02 | 0.71 | 2.72 | -24.95 | 169.72 | 69.28 | 245.75 | 0.9317 | -377.8 | -254.4 | |
| 0.96 | 2.72 | 1.27 | 3.58 | -24.65 | 169.16 | 68.72 | 246.05 | 0.9284 | -363.4 | -293.5 | |
| 0.00 | 0.88 | 0.00 | 1.03 | -24.22 | 166.04 | 65.60 | 246.33 | 0.9086 | 204.0 | 162.8 | |
| 0.79 | 1.75 | 0.92 | 2.03 | -24.03 | 165.70 | 65.26 | 246.52 | 0.9062 | 372.3 | 297.3 | |
| 0.00 | 0.61 | 0.00 | 0.71 | -24.21 | 165.80 | 65.36 | 246.32 | 0.9070 | -128.0 | -87.9 | |
| 0.00 | 0.53 | 0.00 | 0.61 | -24.36 | 165.62 | 65.18 | 246.15 | 0.9059 | -430.0 | -361.8 | |
| 0.00 | 1.05 | 0.00 | 1.27 | -25.71 | 166.79 | 66.35 | 244.75 | 0.9142 | 371.0 | 265.7 | |
| 2.37 | 8.85 | 2.89 | 10.72 | -26.08 | 167.03 | 66.59 | 244.37 | 0.9160 | 538.0 | 144.2 | |
| 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. | |