SDO HMI 2011-10-09 07:59:03 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 |
| 106.21 | 579.68 | 57.99 | 316.41 | 23.17 | 121.76 | -18.90 | 45.20 | 0.4216 | -1444.4 | -442.3 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2011-10-09 07:59:03 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 |
| 0.61 | 578.72 | 0.34 | 315.88 | 23.65 | 122.22 | -18.45 | 43.68 | 0.4215 | -1186.6 | -442.5 | |
| 103.15 | -1.00 | 56.30 | -1.00 | 23.16 | 121.77 | -18.89 | 45.19 | 0.4214 | -1493.2 | 999999 | |
| 0.96 | -1.00 | 0.53 | -1.00 | 23.97 | 121.65 | -19.02 | 43.90 | 0.4312 | -1005.9 | 999999 | |
| 1.49 | -1.00 | 0.82 | -1.00 | 22.46 | 120.50 | -20.17 | 48.21 | 0.4292 | 69.5 | 999999 | |
| 0.00 | 0.96 | 0.00 | 0.53 | 23.34 | 119.91 | -20.76 | 47.33 | 0.4444 | -517.0 | -349.4 | |
| 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. | |