SDO HMI 2014-09-10 21:44:05 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 |
| 5.79 | 11.75 | 6.97 | 13.74 | -12.97 | 152.05 | 62.07 | 251.95 | 0.9071 | 285.0 | 3.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-10 21:44:05 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 |
| 5.79 | 8.01 | 6.97 | 9.66 | -12.17 | 153.13 | 63.16 | 253.11 | 0.9132 | 442.4 | 184.5 | |
| 0.00 | 0.80 | 0.00 | 0.91 | -13.48 | 151.09 | 61.12 | 251.16 | 0.9015 | -232.0 | -220.3 | |
| 0.00 | 1.25 | 0.00 | 1.38 | -15.54 | 149.81 | 59.83 | 248.57 | 0.8966 | 440.0 | 270.9 | |
| 0.00 | 1.69 | 0.00 | 1.79 | -15.03 | 148.40 | 58.43 | 248.68 | 0.8852 | -450.0 | -361.7 | |
| 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. | |