SDO HMI 2014-09-21 06:00:34 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 |
| 9.40 | 36.25 | 11.14 | 43.73 | -15.07 | 250.88 | -62.53 | 110.09 | 0.9133 | 342.7 | 126.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-21 06:00:34 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 |
| 3.01 | 29.34 | 3.49 | 33.94 | -15.43 | 252.16 | -61.25 | 110.81 | 0.9059 | 622.7 | 310.8 | |
| 1.60 | -1.00 | 1.86 | -1.00 | -15.60 | 252.07 | -61.34 | 110.97 | 0.9068 | 337.3 | 999999 | |
| 4.08 | -1.00 | 4.72 | -1.00 | -15.18 | 252.09 | -61.32 | 110.52 | 0.9059 | 598.7 | 999999 | |
| 0.00 | 1.51 | 0.00 | 2.03 | -14.51 | 247.88 | -65.53 | 108.69 | 0.9318 | -367.0 | -263.6 | |
| 0.00 | 3.63 | 0.00 | 5.08 | -13.49 | 246.75 | -66.65 | 107.36 | 0.9369 | -547.0 | -484.7 | |
| 0.71 | 1.77 | 1.07 | 2.68 | -15.02 | 245.40 | -68.01 | 108.62 | 0.9465 | -195.4 | -178.8 | |
| 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. | |