SDO HMI 2014-02-25 23:00:27 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 |
| 17.14 | 87.73 | 47.13 | 242.47 | -26.04 | 90.81 | -81.81 | 115.26 | 0.9839 | -134.4 | -89.9 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-02-25 23:00:27 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 |
| 10.42 | 68.71 | 29.91 | 198.39 | -26.70 | 90.11 | -82.51 | 115.96 | 0.9859 | -106.1 | -79.7 | |
| 3.96 | -1.00 | 10.94 | -1.00 | -26.16 | 90.61 | -82.01 | 115.39 | 0.9847 | -452.5 | 999999 | |
| 0.00 | 1.38 | 0.00 | 3.07 | -25.08 | 93.41 | -79.21 | 114.18 | 0.9762 | -291.0 | -168.7 | |
| 0.00 | 2.84 | 0.00 | 5.95 | -23.97 | 94.48 | -78.15 | 113.00 | 0.9726 | 348.0 | 281.9 | |
| 0.52 | 1.55 | 1.09 | 3.28 | -23.46 | 94.28 | -78.35 | 112.48 | 0.9734 | 289.2 | 284.6 | |
| 2.24 | 12.91 | 5.19 | 30.89 | -23.60 | 93.08 | -79.55 | 112.68 | 0.9776 | 168.3 | -268.2 | |
| 0.00 | 0.34 | 0.00 | 0.89 | -23.31 | 91.69 | -80.94 | 112.44 | 0.9821 | 137.0 | 112.5 | |
| 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. | |