SDO HMI 2014-09-30 15:00:33 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 |
| 19.29 | 99.36 | 15.24 | 78.53 | -9.91 | 141.09 | -48.60 | 108.50 | 0.7815 | 761.2 | 278.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-30 15:00:33 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 | 2.64 | 0.00 | 2.11 | -13.96 | 142.06 | -47.63 | 113.80 | 0.7859 | 757.0 | 564.4 | |
| 0.00 | 0.35 | 0.00 | 0.30 | -16.67 | 139.43 | -50.26 | 115.84 | 0.8207 | 340.0 | 354.5 | |
| 19.29 | 96.11 | 15.24 | 75.91 | -9.77 | 141.07 | -48.62 | 108.32 | 0.7812 | 816.2 | 267.8 | |
| 0.00 | 0.26 | 0.00 | 0.21 | -10.50 | 140.59 | -49.10 | 109.04 | 0.7885 | 349.0 | 336.7 | |
| 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. | |