SDO HMI 2011-10-11 07:59:02 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 |
| 6.74 | 37.23 | 8.92 | 49.41 | -11.20 | 180.23 | 65.95 | 255.23 | 0.9278 | 375.0 | 25.8 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-11 07:59:02 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 |
| 4.29 | 36.44 | 5.69 | 48.59 | -11.09 | 180.42 | 66.14 | 255.40 | 0.9290 | 501.5 | 34.8 | |
| 1.31 | -1.00 | 1.74 | -1.00 | -11.40 | 180.41 | 66.13 | 255.07 | 0.9293 | 302.1 | 999999 | |
| 1.14 | -1.00 | 1.49 | -1.00 | -11.29 | 179.98 | 65.70 | 255.09 | 0.9265 | 543.4 | 999999 | |
| 0.00 | 0.79 | 0.00 | 0.82 | -12.35 | 173.29 | 59.00 | 252.34 | 0.8807 | -469.0 | -410.9 | |
| 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. | |