SDO HMI 2014-04-07 03:00:33 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 |
| 73.97 | 425.21 | 39.40 | 226.50 | 12.71 | 13.50 | 10.38 | 331.42 | 0.3689 | -1212.2 | -409.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-07 03:00:33 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 |
| 73.97 | 417.38 | 39.40 | 222.35 | 12.71 | 13.55 | 10.43 | 331.28 | 0.3692 | -1385.4 | -421.9 | |
| 0.00 | 1.41 | 0.00 | 0.74 | 9.83 | 12.70 | 9.58 | 329.16 | 0.3214 | 701.0 | 572.6 | |
| 0.00 | 1.76 | 0.00 | 0.94 | 14.59 | 11.47 | 8.35 | 338.34 | 0.3824 | -665.0 | -586.0 | |
| 0.00 | 1.14 | 0.00 | 0.61 | 14.52 | 11.25 | 8.13 | 338.79 | 0.3801 | -860.0 | -781.5 | |
| 0.00 | 1.67 | 0.00 | 0.89 | 14.37 | 9.31 | 6.19 | 343.42 | 0.3675 | 877.0 | 649.2 | |
| 0.00 | 1.85 | 0.00 | 0.97 | 11.41 | 8.92 | 5.80 | 341.83 | 0.3193 | 708.0 | 586.5 | |
| 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. | |