SDO HMI 2011-12-18 06:58:55 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 |
| 30.21 | 190.09 | 26.56 | 166.98 | -18.63 | 352.41 | 54.04 | 248.18 | 0.8283 | 751.3 | 304.4 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-12-18 06:58:55 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 |
| 0.00 | 1.19 | 0.00 | 1.09 | -17.93 | 354.21 | 55.84 | 249.40 | 0.8432 | 462.0 | 369.2 | |
| 0.00 | 1.19 | 0.00 | 1.10 | -18.83 | 354.38 | 56.01 | 248.39 | 0.8462 | -469.0 | -398.1 | |
| 0.77 | 182.09 | 0.69 | 159.95 | -18.88 | 353.57 | 55.20 | 248.16 | 0.8392 | 140.6 | 311.1 | |
| 1.79 | -3.00 | 1.61 | -3.00 | -19.13 | 353.26 | 54.88 | 247.79 | 0.8369 | 326.3 | 999999 | |
| 27.65 | -3.00 | 24.26 | -3.00 | -18.55 | 352.33 | 53.96 | 248.26 | 0.8275 | 962.2 | 999999 | |
| 0.00 | 0.77 | 0.00 | 0.65 | -16.29 | 351.06 | 52.69 | 250.69 | 0.8112 | -507.0 | -417.7 | |
| 0.00 | 1.53 | 0.00 | 1.33 | -20.54 | 351.33 | 52.96 | 245.66 | 0.8226 | 454.0 | 325.2 | |
| 0.00 | 1.02 | 0.00 | 0.88 | -20.23 | 351.18 | 52.81 | 245.99 | 0.8205 | 350.0 | 336.5 | |
| 0.00 | 1.02 | 0.00 | 0.88 | -20.39 | 350.99 | 52.62 | 245.75 | 0.8192 | 508.0 | 522.3 | |
| 0.00 | 1.28 | 0.00 | 1.10 | -20.76 | 350.97 | 52.60 | 245.29 | 0.8199 | 450.0 | 340.4 | |
| 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. | |