SDO HMI 2014-09-21 07:22:19 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 | 12.30 | 0.00 | 6.90 | -20.76 | 310.92 | -1.74 | 176.61 | 0.4707 | -239.1 | -208.0 | |
|
previous
or next observation for the same group /
back to the solar disc SDO HMI 2014-09-21 07:22:19 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 | 1.06 | 0.00 | 0.59 | -20.09 | 316.03 | 3.37 | 186.89 | 0.4616 | 715.0 | 545.8 | |
| 0.00 | 1.24 | 0.00 | 0.68 | -18.93 | 312.28 | -0.38 | 179.17 | 0.4403 | 638.0 | 507.3 | |
| 0.00 | 1.24 | 0.00 | 0.69 | -19.16 | 312.25 | -0.42 | 179.11 | 0.4440 | 677.0 | 601.1 | |
| 0.00 | 1.42 | 0.00 | 0.80 | -20.79 | 311.53 | -1.13 | 177.74 | 0.4697 | -564.0 | -493.6 | |
| 0.00 | 1.68 | 0.00 | 0.95 | -21.68 | 310.39 | -2.27 | 175.62 | 0.4844 | -646.0 | -493.7 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -21.34 | 309.78 | -2.88 | 174.38 | 0.4800 | -710.0 | -586.5 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -21.37 | 309.65 | -3.01 | 174.13 | 0.4807 | -752.0 | -578.5 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -21.82 | 309.31 | -3.35 | 173.60 | 0.4881 | -601.0 | -503.2 | |
| 0.00 | 1.15 | 0.00 | 0.65 | -22.06 | 309.28 | -3.39 | 173.59 | 0.4918 | -555.0 | -434.3 | |
| 0.00 | 1.06 | 0.00 | 0.59 | -20.02 | 308.94 | -3.72 | 172.37 | 0.4612 | -593.0 | -485.0 | |
| 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. | |