SDO HMI 2014-09-21 03:00:34 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 | 13.46 | 0.00 | 7.09 | 9.28 | 332.83 | 17.78 | 282.71 | 0.3144 | -25.1 | 52.2 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-21 03:00:34 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 | 0.89 | 0.00 | 0.50 | 9.14 | 343.51 | 28.46 | 276.12 | 0.4751 | -642.0 | -502.2 | |
| 0.00 | 1.15 | 0.00 | 0.65 | 11.17 | 342.98 | 27.93 | 280.50 | 0.4692 | -792.0 | -606.3 | |
| 0.00 | 1.24 | 0.00 | 0.68 | 9.07 | 339.92 | 24.86 | 276.29 | 0.4195 | -703.0 | -583.0 | |
| 0.00 | 0.89 | 0.00 | 0.48 | 8.83 | 339.86 | 24.81 | 275.73 | 0.4185 | -643.0 | -446.8 | |
| 0.00 | 0.97 | 0.00 | 0.53 | 10.85 | 338.21 | 23.16 | 281.02 | 0.3953 | -740.0 | -602.5 | |
| 0.00 | 1.24 | 0.00 | 0.66 | 10.62 | 336.70 | 21.65 | 280.93 | 0.3709 | -709.0 | -558.1 | |
| 0.00 | 0.97 | 0.00 | 0.50 | 9.20 | 330.58 | 15.53 | 278.86 | 0.2687 | 803.0 | 645.2 | |
| 0.00 | 1.06 | 0.00 | 0.54 | 8.48 | 328.60 | 13.55 | 276.79 | 0.2344 | 795.0 | 645.1 | |
| 0.00 | 3.01 | 0.00 | 1.53 | 5.01 | 327.85 | 12.80 | 261.41 | 0.2241 | 741.0 | 621.6 | |
| 0.00 | 0.89 | 0.00 | 0.44 | 12.68 | 321.83 | 6.78 | 310.43 | 0.1520 | 720.0 | 605.3 | |
| 0.00 | 1.15 | 0.00 | 0.58 | 14.43 | 316.15 | 1.10 | 351.72 | 0.1296 | 894.0 | 719.3 | |
| 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. | |