SDO HMI 2014-04-16 16:00:34 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 |
| 24.51 | 115.35 | 47.36 | 224.34 | 18.96 | 164.99 | -72.19 | 68.67 | 0.9667 | -176.9 | -75.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-16 16:00:34 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 |
| 2.48 | 71.30 | 4.03 | 121.39 | 18.62 | 167.97 | -69.21 | 68.45 | 0.9539 | -639.4 | -109.8 | |
| 2.03 | -1.00 | 3.43 | -1.00 | 19.19 | 167.44 | -69.74 | 67.98 | 0.9571 | -281.0 | 999999 | |
| 6.81 | -1.00 | 11.37 | -1.00 | 18.85 | 167.57 | -69.61 | 68.29 | 0.9561 | -458.0 | 999999 | |
| 1.24 | -1.00 | 2.21 | -1.00 | 19.32 | 166.35 | -70.83 | 68.06 | 0.9622 | 93.1 | 999999 | |
| 1.42 | -1.00 | 2.45 | -1.00 | 18.66 | 166.81 | -70.37 | 68.64 | 0.9595 | -272.1 | 999999 | |
| 1.15 | -1.00 | 2.09 | -1.00 | 18.80 | 165.98 | -71.20 | 68.66 | 0.9633 | 130.7 | 999999 | |
| 1.42 | 3.54 | 2.51 | 6.25 | 18.13 | 166.24 | -70.94 | 69.29 | 0.9615 | -264.8 | -198.8 | |
| 0.00 | 1.59 | 0.00 | 3.54 | 20.18 | 163.10 | -74.08 | 67.82 | 0.9758 | 312.0 | 268.6 | |
| 0.00 | 6.19 | 0.00 | 12.98 | 18.64 | 163.59 | -73.59 | 69.28 | 0.9728 | 511.0 | 439.4 | |
| 7.96 | 31.67 | 19.27 | 77.93 | 19.21 | 161.66 | -75.52 | 69.04 | 0.9800 | -17.7 | -155.7 | |
| 0.00 | 1.06 | 0.00 | 2.25 | 17.08 | 163.16 | -74.02 | 70.94 | 0.9733 | 210.0 | 192.8 | |
| 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. | |