SDO HMI 2014-09-03 13:00:36 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 | 3.75 | 0.00 | 2.24 | -21.20 | 168.24 | -19.00 | 147.21 | 0.5620 | 626.5 | 497.1 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-03 13:00:36 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 | 0.54 | 0.00 | 0.31 | -20.43 | 171.41 | -15.84 | 150.91 | 0.5279 | 562.0 | 448.5 | |
| 0.00 | 1.16 | 0.00 | 0.69 | -22.25 | 170.65 | -16.59 | 151.52 | 0.5562 | 679.0 | 580.6 | |
| 0.00 | 0.80 | 0.00 | 0.47 | -19.11 | 167.24 | -20.01 | 143.46 | 0.5451 | 650.0 | 540.7 | |
| 0.00 | 1.25 | 0.00 | 0.77 | -21.85 | 165.42 | -21.82 | 144.15 | 0.5913 | 615.0 | 414.6 | |
| 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. | |