SDO HMI 2014-03-12 02:00:29 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 |
| 4.77 | 21.77 | 4.84 | 21.98 | -17.92 | 47.92 | 61.38 | 253.47 | 0.8732 | 89.6 | 127.7 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-03-12 02:00:29 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 |
| 0.52 | 3.56 | 0.55 | 3.75 | -17.96 | 49.52 | 62.99 | 253.47 | 0.8860 | 458.0 | 465.8 | |
| 0.78 | -1.00 | 0.82 | -1.00 | -17.92 | 49.29 | 62.76 | 253.50 | 0.8842 | 530.8 | 999999 | |
| 0.00 | 1.47 | 0.00 | 1.56 | -18.10 | 49.40 | 62.87 | 253.31 | 0.8851 | 362.0 | 354.9 | |
| 1.13 | 3.47 | 1.14 | 3.51 | -17.29 | 47.97 | 61.43 | 254.19 | 0.8735 | 528.2 | 441.7 | |
| 0.00 | 3.47 | 0.00 | 3.52 | -17.53 | 48.10 | 61.57 | 253.93 | 0.8747 | 245.0 | 331.1 | |
| 1.39 | 2.60 | 1.40 | 2.62 | -18.86 | 47.85 | 61.31 | 252.39 | 0.8730 | -143.6 | -112.4 | |
| 0.52 | 1.65 | 0.50 | 1.58 | -15.81 | 46.04 | 59.51 | 255.87 | 0.8571 | 475.7 | 403.8 | |
| 0.43 | 2.86 | 0.43 | 2.80 | -18.52 | 46.93 | 60.39 | 252.74 | 0.8653 | -307.0 | -383.9 | |
| 0.00 | 1.56 | 0.00 | 1.53 | -18.63 | 46.80 | 60.26 | 252.61 | 0.8643 | -464.0 | -354.8 | |
| 0.00 | 1.13 | 0.00 | 1.11 | -19.13 | 47.04 | 60.50 | 252.04 | 0.8665 | -534.0 | -472.8 | |
| 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. | |