SDO HMI 2014-10-12 17:00:31 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 |
| 0.00 | 12.24 | 0.00 | 8.31 | 18.24 | 348.81 | -41.45 | 69.19 | 0.6625 | -348.9 | -22.6 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-12 17:00:31 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 | 1.49 | 0.00 | 0.83 | 13.98 | 3.28 | -26.98 | 71.30 | 0.4668 | -924.0 | -808.9 | |
| 0.00 | 1.14 | 0.00 | 0.64 | 13.52 | 3.16 | -27.10 | 72.31 | 0.4668 | -799.0 | -662.4 | |
| 0.00 | 0.96 | 0.00 | 0.54 | 14.10 | 2.04 | -28.22 | 71.64 | 0.4852 | -620.0 | -468.0 | |
| 0.00 | 0.61 | 0.00 | 0.35 | 15.16 | 0.05 | -30.22 | 70.49 | 0.5174 | -660.0 | -532.4 | |
| 0.00 | 0.79 | 0.00 | 0.46 | 15.50 | 358.98 | -31.28 | 70.32 | 0.5335 | -648.0 | -563.3 | |
| 0.00 | 0.61 | 0.00 | 0.36 | 15.27 | 358.58 | -31.68 | 70.92 | 0.5383 | -683.0 | -582.9 | |
| 0.00 | 1.05 | 0.00 | 0.71 | 23.11 | 349.31 | -40.96 | 62.26 | 0.6835 | 533.0 | 393.0 | |
| 0.00 | 3.32 | 0.00 | 2.58 | 21.52 | 340.73 | -49.53 | 66.95 | 0.7714 | 605.0 | 531.1 | |
| 0.00 | 2.27 | 0.00 | 1.84 | 18.39 | 337.97 | -52.29 | 71.40 | 0.7943 | 56.0 | 92.5 | |
| 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. | |