SDO HMI 2014-04-12 18:00:33 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 | 8.13 | 0.00 | 4.06 | -8.80 | 284.15 | -4.74 | 144.60 | 0.1264 | 404.4 | 179.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-12 18:00:33 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 | 1.24 | 0.00 | 0.61 | -9.30 | 291.09 | 2.20 | 211.79 | 0.0722 | 872.0 | 690.4 | |
| 0.00 | 0.97 | 0.00 | 0.48 | -9.42 | 291.03 | 2.14 | 210.22 | 0.0735 | 982.0 | 812.9 | |
| 0.00 | 0.97 | 0.00 | 0.48 | -8.79 | 290.39 | 1.50 | 206.33 | 0.0585 | 821.0 | 664.4 | |
| 0.00 | 1.15 | 0.00 | 0.57 | -5.48 | 286.34 | -2.55 | 82.84 | 0.0449 | 943.0 | 691.2 | |
| 0.00 | 0.71 | 0.00 | 0.35 | -7.54 | 284.41 | -4.48 | 111.54 | 0.0836 | 990.0 | 795.8 | |
| 0.00 | 2.12 | 0.00 | 1.07 | -9.71 | 277.11 | -11.78 | 109.25 | 0.2141 | -902.0 | -708.2 | |
| 0.00 | 0.97 | 0.00 | 0.50 | -10.31 | 275.46 | -13.43 | 109.57 | 0.2436 | -875.0 | -638.4 | |
| 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. | |