SDO HMI 2014-10-13 21:00:31 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 | 12.15 | 0.00 | 7.91 | 14.16 | 55.06 | 40.20 | 284.82 | 0.6492 | 495.7 | 342.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-10-13 21:00:31 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 | 2.27 | 0.00 | 1.60 | 17.10 | 59.76 | 44.90 | 288.21 | 0.7126 | -482.0 | -440.5 | |
| 0.00 | 1.84 | 0.00 | 1.18 | 11.94 | 54.70 | 39.84 | 281.49 | 0.6420 | 689.0 | 538.9 | |
| 0.00 | 2.01 | 0.00 | 1.29 | 13.80 | 54.42 | 39.56 | 284.44 | 0.6410 | 605.0 | 493.6 | |
| 0.00 | 0.79 | 0.00 | 0.51 | 14.16 | 54.50 | 39.64 | 284.98 | 0.6426 | 584.0 | 500.0 | |
| 0.00 | 1.57 | 0.00 | 1.01 | 14.34 | 54.17 | 39.31 | 285.32 | 0.6387 | 735.0 | 602.7 | |
| 0.00 | 2.71 | 0.00 | 1.73 | 13.27 | 53.68 | 38.82 | 283.75 | 0.6304 | 711.0 | 580.8 | |
| 0.00 | 0.96 | 0.00 | 0.59 | 13.75 | 50.52 | 35.65 | 285.22 | 0.5890 | 628.0 | 457.7 | |
| 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. | |