SDO HMI 2014-04-12 03:00:33 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 | 16.53 | 0.00 | 8.35 | -14.45 | 301.80 | 4.67 | 203.91 | 0.1960 | -290.6 | -316.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-04-12 03:00:33 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 | 1.06 | 0.00 | 0.55 | -15.06 | 311.53 | 14.40 | 235.81 | 0.2917 | 824.0 | 674.5 | |
| 0.00 | 1.24 | 0.00 | 0.64 | -15.07 | 311.21 | 14.08 | 235.22 | 0.2873 | 693.0 | 591.1 | |
| 0.00 | 1.50 | 0.00 | 0.77 | -12.11 | 310.56 | 13.43 | 243.80 | 0.2543 | 880.0 | 625.1 | |
| 0.00 | 1.50 | 0.00 | 0.75 | -7.88 | 306.39 | 9.27 | 257.05 | 0.1645 | 663.0 | 569.9 | |
| 0.00 | 1.06 | 0.00 | 0.53 | -16.13 | 301.29 | 4.16 | 201.32 | 0.1927 | -865.0 | -708.8 | |
| 0.00 | 1.15 | 0.00 | 0.58 | -16.35 | 300.41 | 3.29 | 196.80 | 0.1913 | -873.0 | -696.9 | |
| 0.00 | 1.15 | 0.00 | 0.58 | -16.57 | 299.57 | 2.45 | 192.40 | 0.1913 | -871.0 | -648.3 | |
| 0.00 | 3.27 | 0.00 | 1.63 | -13.58 | 298.49 | 1.36 | 189.76 | 0.1372 | -966.0 | -860.9 | |
| 0.00 | 1.06 | 0.00 | 0.54 | -17.09 | 297.44 | 0.31 | 181.54 | 0.1958 | -816.0 | -674.4 | |
| 0.00 | 2.30 | 0.00 | 1.16 | -17.21 | 295.68 | -1.45 | 173.02 | 0.1993 | -970.0 | -833.4 | |
| 0.00 | 1.24 | 0.00 | 0.62 | -13.70 | 294.75 | -2.38 | 163.56 | 0.1431 | -896.0 | -654.4 | |
| 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. | |